View source for Biology:2018 in non-avian dinosaur paleontology

{{Short description|Overview of the events of 2018 in non-avian dinosaur archosaur paleontology}}
{{main|Biology:2018 in archosaur paleontology}}
The year '''2018 in non-avian dinosaur paleontology''' was eventful. Archosaurs include the only living dinosaur group — birds — and the reptile [[Biology:Crocodilia|crocodilia]]ns, plus all extinct [[Biology:Dinosaur|dinosaur]]s, extinct crocodilian relatives, and [[Biology:Pterosaur|pterosaur]]s. Archosaur palaeontology is the scientific study of those animals, especially as they existed before the [[Earth:Holocene|Holocene]] Epoch began about 11,700 years ago. This article records new taxa of [[Biology:Fossil|fossil]] [[Biology:Archosaur|archosaur]]s of the non-avian variety that have been [[Biology:Binomial nomenclature|described]] during the year 2018, as well as other significant discoveries and events related to [[Biology:Paleontology|paleontology]] of archosaurs that occurred in the year 2018.

==Research==
* A study intending to identify the evolutionary processes that drove the diversification of dinosaur body mass is published by Benson ''et al.'' (2018).<ref>{{Cite journal|author1=Roger B. J. Benson |author2=Gene Hunt |author3=Matthew T. Carrano |author4=Nicolás Campione |year=2018 |title=Cope's rule and the adaptive landscape of dinosaur body size evolution |journal=Palaeontology |volume=61 |issue=1 |pages=13–48 |doi=10.1111/pala.12329 |bibcode=2018Palgy..61...13B |doi-access=free }}</ref>
* A study on the impact of geography on the evolutionary radiation of dinosaurs is published by O'Donovan, Meade & Venditti (2018), who note increasing amounts of [[Biology:Sympatric speciation|sympatric speciation]] as terrestrial space became a limiting factor.<ref>{{Cite journal|author1=Ciara O'Donovan |author2=Andrew Meade |author3=Chris Venditti |year=2018 |title=Dinosaurs reveal the geographical signature of an evolutionary radiation |journal=Nature Ecology & Evolution |volume=2 |issue=3 |pages=452–458 |doi=10.1038/s41559-017-0454-6 |pmid=29403079 |bibcode=2018NatEE...2..452O |s2cid=3362038 |url=http://centaur.reading.ac.uk/75344/1/75344%20%20Combined.pdf }}</ref>
* A study on the impact of publication history on the estimates of dinosaur diversity patterns through time is published by Tennant, Chiarenza & Baron (2018).<ref>{{Cite journal|author1=Jonathan P. Tennant |author2=Alfio Alessandro Chiarenza |author3=Matthew Baron |year=2018 |title=How has our knowledge of dinosaur diversity through geologic time changed through research history? |journal=PeerJ |volume=6 |page=e4417 |doi=10.7717/peerj.4417 |pmid=29479504 |pmc=5822849 |doi-access=free }}</ref>
* A study evaluating the possible influence of cuirassal ventilation and a herbivorous diet on the orientation of the pubis of dinosaurs is published by Macaluso & Tschopp (2018).<ref>{{Cite journal|author1=Loredana Macaluso |author2=Emanuel Tschopp |year=2018 |title=Evolutionary changes in pubic orientation in dinosaurs are more strongly correlated with the ventilation system than with herbivory |journal=Palaeontology |volume=61 |issue=5 |pages=703–719 |doi=10.1111/pala.12362 |bibcode=2018Palgy..61..703M |s2cid=133643430 }}</ref>
* A study on embryos of extant reptiles and birds, aiming to determine the developmental mechanism underlying the acquisition of the dinosaur-type perforated acetabulum, is published by Egawa ''et al.'' (2018).<ref>{{Cite journal|author1=Shiro Egawa|author2=Daisuke Saito|author3=Gembu Abe|author4=Koji Tamura|year=2018|title=Morphogenetic mechanism of the acquisition of the dinosaur-type acetabulum|journal=Royal Society Open Science|volume=5|issue=10|page=180604|doi=10.1098/rsos.180604|pmid=30473817|pmc=6227947|bibcode=2018RSOS....580604E}}</ref>
* A study on the nesting style and [[Biology:Egg incubation|incubation]] heat source in non-avian dinosaurs as indicated by comparison with extant crocodylians and [[Biology:Megapode|megapode]] birds is published by Tanaka ''et al.'' (2018).<ref>{{Cite journal|author1=Kohei Tanaka |author2=Darla K. Zelenitsky |author3=François Therrien |author4=Yoshitsugu Kobayashi |year=2018 |title=Nest substrate reflects incubation style in extant archosaurs with implications for dinosaur nesting habits |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 3170 |doi=10.1038/s41598-018-21386-x |pmid=29545620 |pmc=5854591 |bibcode=2018NatSR...8.3170T }}</ref>
* A study on pigment traces in fossilized dinosaur eggshells is published by Wiemann, Yang & Norell (2018), who interpret their findings as indicating that eggshell coloration and pigment pattern originated in nonavian theropod dinosaurs.<ref>{{Cite journal|author1=Jasmina Wiemann |author2=Tzu-Ruei Yang |author3=Mark A. Norell |year=2018 |title=Dinosaur egg colour had a single evolutionary origin |journal=Nature |volume=563 |issue=7732 |pages=555–558 |doi=10.1038/s41586-018-0646-5 |pmid=30464264 |bibcode=2018Natur.563..555W |s2cid=53188171 }}</ref><ref>{{Cite journal|author1=Matthew D. Shawkey |author2=Liliana D'Alba |year=2019 |title=Egg pigmentation probably has an early archosaurian origin |journal=Nature |volume=570 |issue=7761 |pages=E43–E45 |doi=10.1038/s41586-019-1282-4 |pmid=31217602 |bibcode=2019Natur.570E..43S |s2cid=195064420 }}</ref><ref>{{Cite journal|author1=Jasmina Wiemann |author2=Tzu-Ruei Yang |author3=Mark A. Norell |year=2019 |title=Reply to: Egg pigmentation probably has an archosaurian origin |journal=Nature |volume=570 |issue=7761 |pages=E46–E50 |doi=10.1038/s41586-019-1283-3 |pmid=31217604 |bibcode=2019Natur.570E..46W |s2cid=195064608 }}</ref>
* A study on the nutritional value of plants grown under elevated CO<sub>2</sub> levels, evaluating the hypothesis that constraints on [[Biology:Sauropoda|sauropod]] diet quality were driven by Mesozoic CO<sub>2</sub> concentration, is published by Gill ''et al.'' (2018).<ref>{{Cite journal|author1=Fiona L. Gill |author2=Jürgen Hummel |author3=A. Reza Sharifi |author4=Alexandra P. Lee |author5=Barry H. Lomax |year=2018 |title=Diets of giants: the nutritional value of sauropod diet during the Mesozoic |journal=Palaeontology |volume=61 |issue=5 |pages=647–658 |doi=10.1111/pala.12385 |pmid=30147151 |pmc=6099296 |bibcode=2018Palgy..61..647G }}</ref>
* Studies evaluating the link between the Carnian Pluvial Event and the explosive diversification of dinosaurs in the early [[Earth:Late Triassic|Late Triassic]] are published by Bernardi ''et al.'' (2018)<ref>{{Cite journal|author1=Massimo Bernardi |author2=Piero Gianolla |author3=Fabio Massimo Petti |author4=Paolo Mietto |author5=Michael J. Benton |year=2018 |title=Dinosaur diversification linked with the Carnian Pluvial Episode |journal=Nature Communications |volume=9 |issue=1 |pages=Article number 1499 |doi=10.1038/s41467-018-03996-1 |pmid=29662063 |pmc=5902586 |bibcode=2018NatCo...9.1499B }}</ref> and Benton, Bernardi & Kinsella (2018).<ref>{{Cite journal|author1=Michael J. Benton |author2=Massimo Bernardi |author3=Cormac Kinsella |year=2018 |title=The Carnian Pluvial Episode and the origin of dinosaurs |journal=Journal of the Geological Society |volume=175 |issue=6 |pages=1019–1026 |doi=10.1144/jgs2018-049 |bibcode=2018JGSoc.175.1019B |s2cid=135104431 |doi-access=free }}</ref>
* A study comparing non-avian dinosaur faunas of [[Earth:Appalachia (Mesozoic)|Appalachia]] and [[Earth:Laramidia|Laramidia]] from the [[Earth:Aptian|Aptian]] to [[Earth:Maastrichtian|Maastrichtian]] stages of the [[Earth:Cretaceous|Cretaceous]] period is published by Brownstein (2018), who also evaluates dinosaur provincialism and ecology on Appalachia.<ref>{{Cite journal|author=Chase D. Brownstein |year=2018 |title=The biogeography and ecology of the Cretaceous non-avian dinosaurs of Appalachia |journal=Palaeontologia Electronica |volume=21 |issue=1 |pages=1–56 |doi=10.26879/801 |doi-access=free }}</ref>
* A study on the bone [[Biology:Histology|histology]] of sauropod dinosaurs and birds, looking for histological correlates indicative of the presence of bird-like air sacs, is published by Lambertz, Bertozzo & Sander (2018).<ref>{{Cite journal|author1=Markus Lambertz|author2=Filippo Bertozzo|author3=P. Martin Sander|year=2018|title=Bone histological correlates for air sacs and their implications for understanding the origin of the dinosaurian respiratory system|journal=Biology Letters|volume=14|issue=1|page=20170514|doi=10.1098/rsbl.2017.0514|pmid=29298825|pmc=5803587}}</ref>
* A study on the Middle Jurassic flora from Yorkshire ({{wipe|United Kingdom}}) as indicated by pollen and spores, and on the possible dinosaur-plant interactions in the area is published by Slater ''et al.'' (2018).<ref>{{Cite journal|author1=Sam M. Slater |author2=Charles H. Wellman |author3=Michael Romano |author4=Vivi Vajda |year=2018 |title=Dinosaur-plant interactions within a Middle Jurassic ecosystem—palynology of the Burniston Bay dinosaur footprint locality, Yorkshire, UK |journal=Palaeobiodiversity and Palaeoenvironments |volume=98 |issue=1 |pages=139–151 |doi=10.1007/s12549-017-0309-9 |bibcode=2018PdPe...98..139S |s2cid=135123262 |doi-access=free }}</ref>
* Description and analysis of insect borings on [[Biology:Hadrosaurid|hadrosaur]] bones from the late [[Earth:Campanian|Campanian]] [[Earth:Cerro del Pueblo Formation|Cerro del Pueblo Formation]] (Mexico) is published by Serrano-Brañas, Espinosa-Chávez & Maccracken (2018).<ref>{{Cite journal|author1=Claudia Inés Serrano-Brañas |author2=Belinda Espinosa-Chávez |author3=Augusta Maccracken |year=2018 |title=Insect damage in dinosaur bones from the Cerro del Pueblo Formation (Late Cretaceous, Campanian) Coahuila, Mexico |journal=Journal of South American Earth Sciences |volume=86 |pages=353–365 |doi=10.1016/j.jsames.2018.07.002 |bibcode=2018JSAES..86..353S |s2cid=134574833 }}</ref>
* A study on the [[Earth:Sedimentology|sedimentological]] and [[Biology:Ichnology|ichnological]] contexts of Early Jurassic dinosaur tracks and trackways from the Ha Nohana palaeosurface located within the upper Elliot Formation (Lesotho), and on the locomotor dynamics and behaviour of the trackmaker dinosaurs, is published by Rampersadh ''et al.'' (2018).<ref>{{Cite journal|author1=Akhil Rampersadh |author2=Emese M. Bordy |author3=Lara Sciscio |author4=Miengah Abrahams |year=2018 |title=Dinosaur behaviour in an Early Jurassic palaeoecosystem – uppermost Elliot Formation, Ha Nohana, Lesotho |journal=Annales Societatis Geologorum Poloniae |volume=88 |issue=2 |pages=163–179 |doi=10.14241/asgp.2018.010 |url=https://geojournals.pgi.gov.pl/asgp/article/view/26089 |doi-access=free }}</ref>
* New Middle Jurassic dinosaur tracksite, preserving sauropod and theropod tracks, is described from the [[Earth:Lealt Shale|Lealt Shale]] Formation (Skye, Scotland, {{wipe|United Kingdom}}) by dePolo ''et al.'' (2018).<ref>{{Cite journal|author1=Paige E. dePolo|author2=Stephen L. Brusatte|author3=Thomas J. Challands|author4=Davide Foffa|author5=Dugald A. Ross|author6=Mark Wilkinson|author7=Hong-yu Yi|year=2018|title=A sauropod-dominated tracksite from Rubha nam Brathairean (Brothers' Point), Isle of Skye, Scotland|journal=Scottish Journal of Geology|volume=54|issue=1|pages=1–12|doi=10.1144/sjg2017-016|bibcode=2018ScJG...54....1D |hdl=20.500.11820/eae5099d-3595-44e3-9996-f3cf6ce7d559|s2cid=133718228|hdl-access=free}}</ref>
* Large theropod (possibly [[Biology:Carcharodontosauridae|carcharodontosaurid]]) and ornithopod ([[Biology:Basal (phylogenetics)|basal]] [[Biology:Hadrosauroidea|hadrosauroid]]) tracks are described from the [[Earth:Lower Cretaceous|Lower Cretaceous]] Sanbukdong Formation ({{wipe|South Korea}}) by Lee ''et al.'' (2018).<ref>{{Cite journal|author1=Yuong-Nam Lee |author2=Hang-Jae Lee |author3=Sang-Young Han |author4=Euijun Park |author5=Chan Hee Lee |year=2018 |title=A new dinosaur tracksite from the Lower Cretaceous Sanbukdong Formation of Gunsan City, South Korea |journal=Cretaceous Research |volume=91 |pages=208–216 |doi=10.1016/j.cretres.2018.06.003 |bibcode=2018CrRes..91..208L |s2cid=134320493 }}</ref>
* A unique association of [[Biology:Hadrosaurid|hadrosaur]] and [[Biology:Therizinosaur|therizinosaur]] tracks is reported from the [[Earth:Late Cretaceous|Late Cretaceous]] lower Cantwell Formation ([[Earth:Alaska|Alaska]], {{wipe|United States}}) by Fiorillo ''et al.'' (2018).<ref>{{Cite journal|author1=Anthony R. Fiorillo |author2=Paul J. McCarthy |author3=Yoshitsugu Kobayashi |author4=Carla S. Tomsich |author5=Ronald S. Tykoski |author6=Yuong-Nam Lee |author7=Tomonori Tanaka |author8=Christopher R. Noto |year=2018 |title=An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 11706 |doi=10.1038/s41598-018-30110-8 |pmid=30076347 |pmc=6076232 |bibcode=2018NatSR...811706F }}</ref>
* Large theropod and small sauropod tracks are described from the Lower Cretaceous [[Earth:Jingchuan Formation|Jingchuan Formation]] ({{wipe|China}}) by Lockley ''et al.'' (2018), who name a new [[Biology:Ichnotaxon|ichnotaxon]] ''Ordexallopus zhanglifui''.<ref>{{Cite journal|author1=Martin G. Lockley |author2=Jianjun Li |author3=Lida Xing |author4=Bin Guo |author5=Masaki Matsukawa |year=2018 |title=Large theropod and small sauropod trackmakers from the Lower Cretaceous Jingchuan Formation, Inner Mongolia, China |journal=Cretaceous Research |volume=92 |pages=150–167 |doi=10.1016/j.cretres.2018.07.007 |bibcode=2018CrRes..92..150L |s2cid=134212557 }}</ref>
* A study on the small to medium-sized tridactyl theropod tracks from the Upper Jurassic of the [[Earth:Jura Mountains|Jura Mountains]] ({{wipe|Switzerland}}), focusing on the possible variations in footprint shape along trackways, is published by Castanera ''et al.'' (2018).<ref>{{Cite journal|author1=Diego Castanera |author2=Matteo Belvedere |author3=Daniel Marty |author4=Géraldine Paratte |author5=Marielle Lapaire-Cattin |author6=Christel Lovis |author7=Christian A. Meyer |year=2018 |title=A walk in the maze: variation in Late Jurassic tridactyl dinosaur tracks from the Swiss Jura Mountains (NW Switzerland) |journal=PeerJ |volume=6 |page=e4579 |doi=10.7717/peerj.4579 |pmid=29629243|pmc=5885975 |doi-access=free }}</ref>
* [[Biology:Theropoda|Theropod]] tracks (probably produced by ''[[Biology:Acrocanthosaurus|Acrocanthosaurus]]'') are described from the [[Earth:Cretaceous|Cretaceous]] ([[Earth:Albian|Albian]]) [[Earth:De Queen Formation|De Queen Formation]] (Arkansas, {{wipe|United States}}) by Platt ''et al.'' (2018).<ref>{{Cite journal|author1=Brian F. Platt |author2=Celina A. Suarez |author3=Stephen K. Boss |author4=Malcolm Williamson |author5=Jackson Cothren |author6=Jo Ann C. Kvamme |year=2018 |title=LIDAR-based characterization and conservation of the first theropod dinosaur trackways from Arkansas, USA |journal=PLOS ONE |volume=13 |issue=1 |page=e0190527 |doi=10.1371/journal.pone.0190527 |pmid=29293618 |pmc=5749850 |bibcode=2018PLoSO..1390527P |doi-access=free }}</ref>
* First [[Earth:Cretaceous|Cretaceous]] track morphotype attributable to the non-avian theropod ichnogenus ''[[Biology:Gigandipus|Gigandipus]]'' is reported from the Lower Cretaceous [[Earth:Jiaguan Formation|Jiaguan Formation]] (Guizhou, {{wipe|China}}) by Xing ''et al.'' (2018), who name a new ichnospecies ''Gigandipus chiappei''.<ref>{{Cite journal|author1=Lida Xing |author2=Martin G. Lockley |author3=Hendrik Klein |author4=Rong Zeng |author5=Sifu Cai |author6=Xiuchun Luo |author7=Chen Li |year=2018 |title=Theropod assemblages and a new ichnotaxon ''Gigandipus chiappei'' ichnosp. nov. from the Jiaguan Formation, Lower Cretaceous of Guizhou Province, China |journal=Geoscience Frontiers |volume=9 |issue=6 |pages=1745–1754 |doi=10.1016/j.gsf.2017.12.012 |bibcode=2018GeoFr...9.1745X |doi-access=free }}</ref>
* New dinosaur ootaxon ''Duovallumoolithus shangdanensis'' is described on the basis of fossil eggs from the [[Earth:Upper Cretaceous|Upper Cretaceous]] Lijiacun Formation ({{wipe|China}}) by Zheng ''et al.'' (2018).<ref>{{Cite journal|author1=Tingting Zheng |author2=Yi Bai |author3=Qiang Wang |author4=Xufeng Zhu |author5=Kaiyong Fang |author6=Yuan Yao |author7=Yongqiang Zhao |author8=Xiaolin Wang |year=2018 |title=A new ootype of dinosaur egg (Faveoloolithidae: ''Duovallumoolithus shangdanensis'' oogen. et oosp. nov.) from the Late Cretaceous in the Shangdan Basin, Shaanxi Province, China |journal=Acta Geologica Sinica (English Edition) |volume=92 |issue=3 |pages=897–903 |doi=10.1111/1755-6724.13581 |bibcode=2018AcGlS..92..897Z |s2cid=134054882 |url=http://www.geojournals.cn/dzxben/ch/reader/view_abstract.aspx?file_no=2018endzxb03002&flag=1 }}</ref>
* A study on dendroolithid eggs from the Upper Cretaceous Tumiaoling Hill locality ([[Earth:Gaogou Formation|Gaogou Formation]]; Yunxian, Hubei Province, China) is published by Zhang ''et al.'' (2018), who transfer the oospecies ''"[[Earth:Dendroolithus|Dendroolithus]]" tumiaolingensis'' Zhou, Ren, Xu & Guan (1998) to the genus ''Placoolithus''.<ref>{{Cite journal|author1=Shukang Zhang |author2=Tzu-Ruei Yang|author3=Zhengqi Li|author4=Yongguo Hu|year=2018|title=New dinosaur egg material from Yunxian, Hubei Province, China resolves the classification of dendroolithid eggs|journal=Acta Palaeontologica Polonica|volume=63|issue=4|pages=671–678|doi=10.4202/app.00523.2018 |doi-access=free }}</ref>
* Evidence of cuticle preservation on theropod [[Biology:Eggshell|eggshell]]s from the Nanxiong Group in {{wipe|China}} and the [[Medicine:Two Medicine Formation|Two Medicine Formation]] in Montana, {{wipe|United States}} is presented by Yang ''et al.'' (2018).<ref>{{Cite journal|author1=Tzu-Ruei Yang |author2=Ying-Hsuan Chen |author3=Jasmina Wiemann |author4=Beate Spiering |author5=P. Martin Sander |year=2018 |title=Fossil eggshell cuticle elucidates dinosaur nesting ecology |journal=PeerJ |volume=6 |page=e5144 |doi=10.7717/peerj.5144 |pmid=30002976 |pmc=6037156 |doi-access=free }}</ref>
* Description of a [[Biology:Femur|femur]] of a young [[Biology:Diplodocoidea|diplodocoid]] sauropod from the Carnegie Quarry (Upper Jurassic [[Earth:Morrison Formation|Morrison Formation]]) at [[Earth:Dinosaur National Monument|Dinosaur National Monument]] ({{wipe|United States}}), showing extensive bite marks on the bone, and a study on the identity and feeding technique of the tracemaker is published by Hone & Chure (2018).<ref>{{Cite journal|author1=David W.E. Hone |author2=Daniel J. Chure |year=2018 |title=Difficulties in assigning trace makers from theropodan bite marks: an example from a young diplodocoid sauropod |journal=Lethaia |volume=51 |issue=3 |pages=456–466 |doi=10.1111/let.12267 |bibcode=2018Letha..51..456H |url=http://qmro.qmul.ac.uk/xmlui/handle/123456789/36557 }}</ref>
* A skull of a [[Biology:Chasmosaurinae|chasmosaurine]] [[Biology:Ceratopsia|ceratopsia]]n, preserving bite traces made by a [[Biology:Tyrannosauridae|tyrannosaurid]] theropod, is described from the [[Earth:Campanian|Campanian]] [[Earth:Kirtland Formation|Kirtland Formation]] (New Mexico, {{wipe|United States}}) by Dalman & Lucas (2018).<ref>{{Cite journal|author1=Sebastian G. Dalman |author2=Spencer G. Lucas |year=2018 |title=New evidence for predatory behavior in tyrannosaurid dinosaurs from the Kirtland Formation (Late Cretaceous, Campanian), northwestern New Mexico |journal=New Mexico Museum of Natural History and Science Bulletin |volume=79 |pages=113–124 |url=https://www.researchgate.net/publication/328676803 }}</ref>
* A study on the function of denticle shape variation in the teeth of [[Biology:Coelurosauria|coelurosaurs]] of various body shapes and sizes is published by Torices ''et al.'' (2018).<ref>{{Cite journal|author1=Angelica Torices |author2=Ryan Wilkinson |author3=Victoria M. Arbour |author4=Jose Ignacio Ruiz-Omeñaca |author5=Philip J. Currie |year=2018 |title=Puncture-and-pull biomechanics in the teeth of predatory coelurosaurian dinosaurs |journal=Current Biology |volume=28 |issue=9 |pages=1467–1474.e2 |doi=10.1016/j.cub.2018.03.042 |pmid=29706515 |s2cid=13968641 |doi-access=free }}</ref>
* New data on feather anatomy in theropod dinosaurs ''[[Biology:Sinosauropteryx|Sinosauropteryx]]'', ''[[Biology:Caudipteryx|Caudipteryx]]'' and ''[[Biology:Anchiornis|Anchiornis]]'' is presented by Saitta, Gelernter & Vinther (2018).<ref>{{Cite journal|author1=Evan T. Saitta |author2=Rebecca Gelernte |author3=Jakob Vinther |year=2018 |title=Additional information on the primitive contour and wing feathering of paravian dinosaurs |journal=Palaeontology |volume=61 |issue=2 |pages=273–288 |doi=10.1111/pala.12342 |bibcode=2018Palgy..61..273S |hdl=1983/61351c6d-1517-4101-bac8-50cbb733761d |s2cid=56104335 |url=https://research-information.bris.ac.uk/en/publications/additional-information-on-the-primitive-contour-and-wing-feathering-of-paravian-dinosaurs(61351c6d-1517-4101-bac8-50cbb733761d).html |hdl-access=free }}</ref>
* Theropod tracksite discovered in the [[Earth:Maastrichtian|Maastrichtian]] [[Earth:Nemegt Formation|Nemegt Formation]] (Mongolia), preserving tracks of least four different trackmakers, and associated with a distorted foot skeleton of ''[[Biology:Gallimimus|Gallimimus]]'', is described by Lee ''et al.'' (2018).<ref>{{Cite journal|author1=Hang-Jae Lee |author2=Yuong-Nam Lee |author3=Thomas L. Adams |author4=Philip J. Currie |author5=Yoshitsugu Kobayashi |author6=Louis L. Jacobs |author7=Eva B. Koppelhus |year=2018 |title=Theropod trackways associated with a ''Gallimimus'' foot skeleton from the Nemegt Formation, Mongolia |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=494 |pages=160–167 |doi=10.1016/j.palaeo.2017.10.020 |bibcode=2018PPP...494..160L }}</ref>
* Didactyl theropod tracks with similarities to footprints attributed to small [[Biology:Deinonychosauria|deinonychosauria]]n theropods are described from the Middle Jurassic (Aalenian-Bajocian) [[Earth:Dansirit Formation|Dansirit Formation]] ([[Religion:Iran|Iran]]) by Xing, Abbassi & Lockley (2018).<ref>{{Cite journal|author1=Lida Xing |author2=Nasrollah Abbassi |author3=Martin G. Lockley |year=2018 |title=Enigmatic didactyl tracks from the Jurassic of Iran |journal=Historical Biology: An International Journal of Paleobiology |volume=30 |issue=8 |pages=1132–1138 |doi=10.1080/08912963.2017.1339700 |bibcode=2018HBio...30.1132X |s2cid=134161036 }}</ref>
* Parallel trackways indicating a group of small didactyl bipeds of inferred deinonychosaurian affinity are described from the [[Earth:Lower Cretaceous|Lower Cretaceous]] Dasheng Group ({{wipe|China}}) by Xing ''et al.'' (2018).<ref>{{Cite journal|author1=Lida Xing |author2=Martin G. Lockley |author3=Ying Guo |author4=Hendrik Klein |author5=Junqiang Zhang |author6=Li Zhang |author7=W. Scott Persons IV |author8=Anthony Romilio |author9=Yonggang Tang |author10=Xiaoli Wang |year=2018 |title=Multiple parallel deinonychosaurian trackways from a diverse dinosaur track assemblage of the Lower Cretaceous Dasheng Group of Shandong Province, China |journal=Cretaceous Research |volume=90 |pages=40–55 |doi=10.1016/j.cretres.2018.04.005 |bibcode=2018CrRes..90...40X |s2cid=135126683 |url=https://espace.library.uq.edu.au/view/UQ:4bac9a1/UQ4bac9a1_OA.pdf }}</ref>
* Didactyl tracks attributed to juvenile or diminutive [[Biology:Dromaeosauridae|dromaeosaurs]] are described from the Lower Cretaceous ([[Earth:Aptian|Aptian]]) [[Earth:Jinju Formation|Jinju Formation]] ({{wipe|South Korea}}) by Kim ''et al.'' (2018), who name a new [[Biology:Ichnotaxon|ichnotaxon]] ''Dromaeosauriformipes rarus''.<ref>{{Cite journal|author1=Kyung Soo Kim |author2=Jong Deock Lim |author3=Martin G. Lockley |author4=Lida Xing |author5=Dong Hee Kim |author6=Laura Piñuela |author7=Anthony Romilio |author8=Jae Sang Yoo |author9=Jin Ho Kim |author10=Jaehong Ahn |year=2018 |title=Smallest known raptor tracks suggest microraptorine activity in lakeshore setting |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 16908 |doi=10.1038/s41598-018-35289-4 |pmid=30442900 |pmc=6237872 |bibcode=2018NatSR...816908K }}</ref>
* Bishop ''et al.'' (2018) present predictive equations that may be used to model non-avian theropod locomotion, developed on the basis of a study of extant ground-running birds.<ref>{{Cite journal|author1=P. J. Bishop |author2=D. F. Graham |author3=L. P. Lamas |author4=J. R. Hutchinson |author5=J. Rubenson |author6=J. A. Hancock |author7=R. S. Wilson |author8=S. A. Hocknull |author9=R. S. Barrett |author10=D. G. Lloyd |author11=C. J. Clemente |year=2018 |title=The influence of speed and size on avian terrestrial locomotor biomechanics: Predicting locomotion in extinct theropod dinosaurs |journal=PLOS ONE |volume=13 |issue=2 |page=e0192172 |doi=10.1371/journal.pone.0192172 |pmid=29466362 |pmc=5821450 |bibcode=2018PLoSO..1392172B |doi-access=free }}</ref>
* A three-part series of papers investigating the architecture of [[Biology:Bone#Cancellous bone|cancellous bone]] in the main hindlimb bones of theropod dinosaurs, and evaluating its implications for inferring locomotor biomechanics in extinct non-avian theropods, is published by Bishop ''et al.'' (2018).<ref>{{Cite journal|author1=Peter J. Bishop |author2=Scott A. Hocknull |author3=Christofer J. Clemente |author4=John R. Hutchinson |author5=Andrew A. Farke |author6=Belinda R. Beck |author7=Rod S. Barrett |author8=David G. Lloyd |year=2018 |title=Cancellous bone and theropod dinosaur locomotion. Part I—an examination of cancellous bone architecture in the hindlimb bones of theropods |journal=PeerJ |volume=6 |page=e5778 |doi=10.7717/peerj.5778 |pmid=30402347 |pmc=6215452 |doi-access=free }}</ref><ref>{{Cite journal|author1=Peter J. Bishop |author2=Scott A. Hocknull |author3=Christofer J. Clemente |author4=John R. Hutchinson |author5=Rod S. Barrett |author6=David G. Lloyd |year=2018 |title=Cancellous bone and theropod dinosaur locomotion. Part II—a new approach to inferring posture and locomotor biomechanics in extinct tetrapod vertebrates |journal=PeerJ |volume=6 |page=e5779 |doi=10.7717/peerj.5779 |pmid=30402348 |pmc=6215447 |doi-access=free }}</ref><ref>{{Cite journal|author1=Peter J. Bishop |author2=Scott A. Hocknull |author3=Christofer J. Clemente |author4=John R. Hutchinson |author5=Andrew A. Farke |author6=Rod S. Barrett |author7=David G. Lloyd |year=2018 |title=Cancellous bone and theropod dinosaur locomotion. Part III—Inferring posture and locomotor biomechanics in extinct theropods, and its evolution on the line to birds |journal=PeerJ |volume=6 |page=e5777 |doi=10.7717/peerj.5777 |pmid=30402346 |pmc=6215443 |doi-access=free }}</ref>
* A study on the resource partitioning among theropod dinosaurs known from the mid-Cretaceous assemblages from Niger ([[Earth:Elrhaz Formation#Gadoufaoua|Gadoufaoua]]) and Morocco ([[Earth:Kem Kem Beds|Kem Kem Beds]]) as indicated by calcium isotope values from tooth enamel is published by Hassler ''et al.'' (2018).<ref>{{Cite journal|author1=A. Hassler |author2=J. E. Martin |author3=R. Amiot |author4=T. Tacail |author5=F. Arnaud Godet |author6=R. Allain |author7=V. Balter |year=2018 |title=Calcium isotopes offer clues on resource partitioning among Cretaceous predatory dinosaurs |journal=Proceedings of the Royal Society B: Biological Sciences |volume=285 |issue=1876 |page=20180197 |doi=10.1098/rspb.2018.0197 |pmid=29643213 |pmc=5904318 }}</ref>
* A study on the early evolution of the theropod hands and wrists, especially on the transition from five- to four-fingered hands, as indicated by the anatomy of the hands of ''[[Biology:Coelophysis|Coelophysis]] bauri'' and ''[[Biology:Megapnosaurus|Megapnosaurus]] rhodesiensis'' is published by Barta, Nesbitt & Norell (2018).<ref>{{Cite journal|author1=Daniel E. Barta |author2=Sterling J. Nesbitt |author3=Mark A. Norell |year=2018 |title=The evolution of the manus of early theropod dinosaurs is characterized by high inter- and intraspecific variation |journal=Journal of Anatomy |volume=232 |issue=1 |pages=80–104 |doi=10.1111/joa.12719 |pmid=29114853 |pmc=5735062 }}</ref>
* A study on the [[Biology:Morphology|morphological]] changes that occurred during [[Biology:Ontogeny|ontogeny]] in the postcranial skeleton of ''Coelophysis bauri'' and ''Megapnosaurus rhodesiensis'' is published by Griffin (2018).<ref>{{Cite journal|author=C. T. Griffin |year=2018 |title=Developmental patterns and variation among early theropods |journal=Journal of Anatomy |volume=232 |issue=4 |pages=604–640 |doi=10.1111/joa.12775 |pmid=29363129 |pmc=5835796 }}</ref>
* A study on the anatomy, phylogenetic relationships, paleobiology and biogeography of members of [[Biology:Ceratosauria|Ceratosauria]] is published by Delcourt (2018), who names a new clade Etrigansauria.<ref>{{Cite journal|author=Rafael Delcourt |year=2018 |title=Ceratosaur palaeobiology: new insights on evolution and ecology of the southern rulers |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 9730 |doi=10.1038/s41598-018-28154-x |pmid=29950661 |pmc=6021374 |bibcode=2018NatSR...8.9730D }}</ref>
* A study on the pneumatization of a [[Biology:Noasauridae|noasaurid]] [[Biology:Vertebra|vertebra]] recovered from the [[Earth:Upper Cretaceous|Upper Cretaceous]] [[Earth:Adamantina Formation|Adamantina Formation]] ({{wipe|Brazil}}) is published by Brum ''et al.'' (2018).<ref>{{Cite journal|author1=Arthur Souza Brum |author2=Elaine Batista Machado |author3=Diogenes de Almeida Campos |author4=Alexander Wilhelm Armin Kellner |year=2018 |title=Description of uncommon pneumatic structures of a noasaurid (Theropoda, Dinosauria) cervical vertebra to the Bauru Group (Upper Cretaceous), Brazil |journal=Cretaceous Research |volume=85 |pages=193–206 |doi=10.1016/j.cretres.2017.10.012 |bibcode=2018CrRes..85..193B }}</ref>
* Two shed tooth crowns of an [[Biology:Abelisauridae|abelisaurid]] theropod are described from the [[Earth:Cenomanian|Cenomanian]] [[Earth:Alcântara Formation|Alcântara Formation]] by Sales, de Oliveira & Schultz (2018), representing the oldest abelisaurid occurrence from {{wipe|Brazil}} to date.<ref>{{Cite journal|author1=Marcos A.F. Sales |author2=Isabel A.P. de Oliveira |author3=Cesar L. Schultz |year=2018 |title=The oldest abelisaurid record from Brazil and the palaeobiogeographic significance of mid-Cretaceous dinosaur assemblages from northern South America |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=508 |pages=107–115 |doi=10.1016/j.palaeo.2018.07.024 |bibcode=2018PPP...508..107S |s2cid=133650699 }}</ref>
* Paulina-Carabajal & Filippi (2018) reconstruct the endocranial cavity enclosing the brain, cranial nerves, blood vessels and the labyrinth of the inner ear of the holotype specimen of ''[[Biology:Viavenator|Viavenator]] exxoni''.<ref>{{cite journal |author1=Ariana Paulina-Carabajal |author2=Leonardo Filippi |year=2018 |title=Neuroanatomy of the abelisaurid theropod ''Viavenator'': The most complete reconstruction of a cranial endocast and inner ear for a South American representative of the clade |journal=Cretaceous Research |volume=83 |pages=84–94 |doi=10.1016/j.cretres.2017.06.013 |bibcode=2018CrRes..83...84P }}</ref>
* Description of the [[Biology:Osteology|osteology]] of ''Viavenator exxoni'' is published by Filippi ''et al.'' (2018).<ref>{{cite journal |author1=Leonardo S. Filippi |author2=Ariel H. Méndez |author3=Federico A. Gianechini |author4=Rubén D. Juárez Valieri |author5=Alberto C. Garrido |year=2018 |title=Osteology of ''Viavenator exxoni'' (Abelisauridae; Furileusauria) from the Bajo de la Carpa Formation, NW Patagonia, Argentina |journal=Cretaceous Research |volume=83 |pages=95–119 |doi=10.1016/j.cretres.2017.07.019 |bibcode=2018CrRes..83...95F |hdl=11336/75315 |hdl-access=free }}</ref>
* Fragmented theropod [[Biology:Maxilla|maxilla]] from the Upper Cretaceous [[Earth:Presidente Prudente Formation|Presidente Prudente Formation]] ({{wipe|Brazil}}), initially thought to be a [[Biology:Carcharodontosauridae|carcharodontosaurid]] fossil, is interpreted as more likely to be an [[Biology:Abelisauridae|abelisaurid]] fossil by Delcourt & Grillo (2018).<ref>{{cite journal |author1=Rafael Delcourt |author2=Orlando Nelson Grillo |year=2018 |title=Reassessment of a fragmentary maxilla attributed to Carcharodontosauridae from Presidente Prudente Formation, Brazil |journal=Cretaceous Research |volume=84 |pages=515–524 |doi=10.1016/j.cretres.2017.09.008 |bibcode=2018CrRes..84..515D }}</ref>
* A vertebra of a large [[Biology:Megalosauridae|megalosaurid]] theropod, as well as large theropod footprints representing two morphotypes, are described from the Upper Jurassic (Kimmeridgian) of Asturias ({{wipe|Spain}}) by Rauhut ''et al.'' (2018).<ref>{{cite journal |author1=Oliver W.M. Rauhut |author2=Laura Piñuela |author3=Diego Castanera |author4=José-Carlos García-Ramos |author5=Irene Sánchez Cela |year=2018 |title=The largest European theropod dinosaurs: remains of a gigantic megalosaurid and giant theropod tracks from the Kimmeridgian of Asturias, Spain |journal=PeerJ |volume=6 |page=e4963 |doi=10.7717/peerj.4963 |pmid=30002951 |pmc=6035862 |doi-access=free }}</ref>
* A study on the anatomy and [[Biology:Histology|histology]] of a partial [[Biology:Spinosauridae|spinosaurid]] [[Biology:Tibia|tibia]] from the [[Earth:Lower Cretaceous|Lower Cretaceous]] [[Earth:Romualdo Formation|Romualdo Formation]] ({{wipe|Brazil}}), possessing traits previously only observed in ''[[Biology:Spinosaurus|Spinosaurus]] aegyptiacus'' and correlated with semi-aquatic habits in many limbed vertebrates, is published by Aureliano ''et al.'' (2018).<ref>{{cite journal |author1=Tito Aureliano |author2=Aline M. Ghilardi |author3=Pedro V. Buck |author4=Matteo Fabbri |author5=Adun Samathi |author6=Rafael Delcourt |author7=Marcelo A. Fernandes |author8=Martin Sander |year=2018 |title=Semi-aquatic adaptations in a spinosaur from the Lower Cretaceous of Brazil |journal=Cretaceous Research |volume=90 |pages=283–295 |doi=10.1016/j.cretres.2018.04.024 |bibcode=2018CrRes..90..283A |s2cid=134353898 |url=http://osf.io/mjt95/ }}</ref>
* Spinosaurid fossils assigned to a form distinct from ''[[Biology:Baryonyx|Baryonyx]]'', ''[[Biology:Suchomimus|Suchomimus]]'' and ''[[Biology:Sigilmassasaurus|Sigilmassasaurus]]'' are described from the upper [[Earth:Barremian|Barremian]] [[Earth:Arcillas de Morella Formation|Arcillas de Morella Formation]] ({{wipe|Spain}}) by Malafaia ''et al.'' (2018).<ref>{{cite journal |author1=Elisabete Malafaia |author2=José Miguel Gasulla |author3=Fernando Escaso |author4=Iván Narváez |author5=José Luis Sanz |author6=Francisco Ortega |year=2018 |title=New spinosaurid (Theropoda, Megalosauroidea) remains from the Arcillas de Morella Formation (upper Barremian) of Morella, Spain |journal=Cretaceous Research |volume=92 |pages=174–183 |doi=10.1016/j.cretres.2018.08.006 |bibcode=2018CrRes..92..174M |s2cid=134572693 }}</ref>
* A nearly complete [[Biology:Pes (anatomy)|pedal]] [[Biology:Ungual|ungual]] [[Biology:Phalanx bone|phalanx]] of an early juvenile specimen of ''[[Biology:Spinosaurus|Spinosaurus]]'', representing the smallest known specimen assigned to this genus reported so far, is described from the [[Earth:Cretaceous|Cretaceous]] [[Earth:Kem Kem Beds|Kem Kem Beds]] (Morocco) by Maganuco & Dal Sasso (2018).<ref>{{cite journal |author1=Simone Maganuco |author2=Cristiano Dal Sasso |year=2018 |title=The smallest biggest theropod dinosaur: a tiny pedal ungual of a juvenile ''Spinosaurus'' from the Cretaceous of Morocco |journal=PeerJ |volume=6 |page=e4785 |doi=10.7717/peerj.4785 |pmid=29868253 |pmc=5984586 |doi-access=free }}</ref>
* A study on the floating capabilities of ''Spinosaurus'' and other theropods is published by Henderson (2018), who argues that ''Spinosaurus'' was not highly specialized for a semi-aquatic mode of life.<ref>{{cite journal |author=Donald M. Henderson |year=2018 |title=A buoyancy, balance and stability challenge to the hypothesis of a semi-aquatic ''Spinosaurus'' Stromer, 1915 (Dinosauria: Theropoda) |journal=PeerJ |volume=6 |page=e5409 |doi=10.7717/peerj.5409 |pmid=30128195 |pmc=6098948 |doi-access=free }}</ref>
* A study on the anatomy of the skull of ''[[Biology:Concavenator|Concavenator]] corcovatus'' is published by Cuesta ''et al.'' (2018).<ref>{{Cite journal|author1=Elena Cuesta |author2=Daniel Vidal |author3=Francisco Ortega |author4=José L. Sanz |year=2018 |title=The cranial osteology of ''Concavenator corcovatus'' (Theropoda; Carcharodontosauria) from the Lower Cretaceous of Spain |journal=Cretaceous Research |volume=91 |pages=176–194 |doi=10.1016/j.cretres.2018.06.007 |bibcode=2018CrRes..91..176C |s2cid=133708030 }}</ref>
* A study on the limb anatomy of ''Concavenator corcovatus'' is published by Cuesta, Ortega & Sanz (2018).<ref>{{cite journal |author1=Elena Cuesta |author2=Francisco Ortega |author3=José Luis Sanz |year=2018 |title=Appendicular osteology of ''Concavenator corcovatus'' (Theropoda; Carcharodontosauridae; Early Cretaceous; Spain) |journal=Journal of Vertebrate Paleontology |volume=38 |issue=4 |pages=(1)–(24) |doi=10.1080/02724634.2018.1485153 |s2cid=91976402 |url=https://figshare.com/articles/journal_contribution/7177802 }}</ref>
* A review of the fossil record of carcharodontosaurid theropods from the Cretaceous of North Africa, assessing its implications for understanding the distribution and ecological role of members of this group, is published by Candeiro ''et al.'' (2018).<ref>{{Cite journal|author1=Carlos Roberto dos Anjos Candeiro|author2=Stephen Louis Brusatte|author3=Luciano Vidal|author4=Paulo Victor Luiz Gomes da Costa Pereira|year=2018|title=Paleobiogeographic evolution and distribution of Carcharodontosauridae (Dinosauria, Theropoda) during the middle Cretaceous of North Africa|journal=Papéis Avulsos de Zoologia|volume=58|page=e20185829|doi=10.11606/1807-0205/2018.58.29|doi-access=free}}</ref>
* Description of theropod (including [[Biology:Tyrannosauroidea|tyrannosauroid]], [[Biology:Ornithomimosauria|ornithomimosaur]] and [[Biology:Dromaeosauridae|dromaeosaurid]]) specimens from the Ellisdale site of the Cretaceous [[Earth:Marshalltown Formation|Marshalltown Formation]] (New Jersey, {{wipe|United States}}) is published by Brownstein (2018).<ref>{{cite journal |author=Chase D. Brownstein |year=2018 |title=The distinctive theropod assemblage of the Ellisdale site of New Jersey and its implications for North American dinosaur ecology and evolution during the Cretaceous |journal=Journal of Paleontology |volume=92 |issue=6 |pages=1115–1129 |doi=10.1017/jpa.2018.42 |bibcode=2018JPal...92.1115B |s2cid=96446690 |doi-access=free }}</ref>
* A study on the dietary and habitat preferences of theropod dinosaurs from the Upper Cretaceous Mussentuchit Member of the [[Earth:Cedar Mountain Formation|Cedar Mountain Formation]] of Utah is published by Frederickson, Engel & Cifelli (2018).<ref>{{Cite journal|author1=J. A. Frederickson |author2=M. H. Engel |author3=R. L. Cifelli |year=2018 |title=Niche partitioning in theropod dinosaurs: diet and habitat preference in predators from the uppermost Cedar Mountain Formation (Utah, U.S.A.) |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 17872 |doi=10.1038/s41598-018-35689-6 |pmid=30552378 |pmc=6294763 |bibcode=2018NatSR...817872F }}</ref>
* Theropod fossils from the [[Earth:Lower Cretaceous|Lower Cretaceous]] ([[Earth:Albian|Albian]]) Santana Formation ({{wipe|Brazil}}), initially thought to be [[Biology:Oviraptorosauria|oviraptorosaur]] fossils, are reinterpreted as fossils of a member of [[Biology:Megaraptora|Megaraptora]] by Aranciaga Rolando ''et al.'' (2018).<ref>{{cite journal |author1=Alexis M. Aranciaga Rolando |author2=Federico Brissón Egli |author3=Marcos A.F. Sales |author4=Agustín G. Martinelli |author5=Juan I. Canale |author6=Martín D. Ezcurra |year=2018 |title=A supposed Gondwanan oviraptorosaur from the Albian of Brazil represents the oldest South American megaraptoran |journal=Cretaceous Research |volume=84 |pages=107–119 |doi=10.1016/j.cretres.2017.10.019 |bibcode=2018CrRes..84..107A }}</ref>
* A study on the phylogenetic relationships of ''[[Biology:Timimus|Timimus]] hermani'' and ''[[Biology:Santanaraptor|Santanaraptor]] placidus'' is published by Delcourt & Grillo (2018), who interpret these taxa as tyrannosauroid theropods, and name new clades Pantyrannosauria and [[Biology:Eutyrannosauria|Eutyrannosauria]].<ref>{{cite journal |author1=Rafael Delcourt |author2=Orlando Nelson Grillo |year=2018 |title=Tyrannosauroids from the Southern Hemisphere: Implications for biogeography, evolution, and taxonomy |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=511 |pages=379–387 |doi=10.1016/j.palaeo.2018.09.003 |bibcode=2018PPP...511..379D |s2cid=133830150 }}</ref>
* The first [[Medicine:Neurocranium|neurocranial]] and paleoneurological description of ''[[Biology:Dilong paradoxus|Dilong paradoxus]]'', comparing it with large [[Biology:Tyrannosauridae|tyrannosaurids]], is published online by Kundrát ''et al.'' (2018).<ref>{{Cite journal|author1=Martin Kundrát |author2=Xing Xu |author3=Martina Hančová |author4=Andrej Gajdoš |author5=Yu Guo |author6=Defeng Chen |year=2018 |title=Evolutionary disparity in the endoneurocranial configuration between small and gigantic tyrannosauroids |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=5 |pages=620–634 |doi=10.1080/08912963.2018.1518442 |s2cid=91373963 }}</ref>
* A metatarsal bone of an indeterminate tyrannosauroid theropod, indicative of an animal in the size range of tyrannosauroids from the [[Earth:Santonian|Santonian]] to [[Earth:Maastrichtian|Maastrichtian]], is described from the [[Earth:Cenomanian|Cenomanian]] Potomac Formation of New Jersey by Brownstein (2018), representing the only definite occurrence of a tyrannosauroid in [[Earth:Appalachia (Mesozoic)|Appalachia]] (eastern North America) before the [[Earth:Coniacian|Coniacian]] and Santonian.<ref>{{cite journal |author=Chase Doran Brownstein |year=2018 |title=A tyrannosauroid from the lower Cenomanian of New Jersey and its evolutionary and biogeographic implications |journal=Bulletin of the Peabody Museum of Natural History |volume=59 |issue=1 |pages=95–105 |doi=10.3374/014.058.0210 |s2cid=90633156 }}</ref>
* Three foot bones of large tyrannosauroid theropods, interpreted as fossils of non-[[Biology:Tyrannosauridae|tyrannosaurid]] tyrannosauroids, are described from the [[Earth:Maastrichtian|Maastrichtian]] Navesink Formation (New Jersey, {{wipe|United States}}) by Brownstein (2018).<ref>{{Cite journal|author=Chase Brownstein |year=2018 |title=Large basal tyrannosauroids from the Maastrichtian and terrestrial vertebrate diversity in the shadow of the K-Pg extinction |journal=The Mosasaur. The Journal of the Delaware Valley Paleontological Society |volume=X |pages=105–115 |url=https://www.researchgate.net/publication/329687124 }}</ref>
* Partial [[Biology:Tibia|tibia]] of a tyrannosauroid theropod, possibly a relative of ''[[Biology:Bistahieversor|Bistahieversor]] sealeyi'', is described from the Upper Cretaceous ([[Earth:Maastrichtian|Maastrichtian]]) Navesink Formation (New Jersey, {{wipe|United States}}) by Brownstein (2018).<ref>{{cite journal |author=Chase D. Brownstein |year=2018 |title=A tyrannosauroid tibia from the Navesink Formation of New Jersey and its biogeographic and evolutionary implications for North American tyrannosauroids |journal=Cretaceous Research|volume=85|pages=309–318|doi=10.1016/j.cretres.2018.01.005|bibcode=2018CrRes..85..309B }}</ref>
* A metatarsal bone of a young [[Biology:Tyrannosauridae|tyrannosaurid]] theropod, marked with several long grooves interpreted as tooth traces of a large tyrannosaurid, is described from the [[Earth:Upper Cretaceous|Upper Cretaceous]] ([[Earth:Maastrichtian|Maastrichtian]]) Lance Formation (Wyoming, {{wipe|United States}}) by McLain ''et al.'' (2018).<ref>{{Cite journal|author1=Matthew A. McLain |author2=David Nelsen |author3=Keith Snyder |author4=Christopher T. Griffin |author5=Bethania Siviero |author6=Leonard R. Brand |author7=Arthur V. Chadwick |year=2018 |title=Tyrannosaur cannibalism: a case of a tooth-traced tyrannosaurid bone in the Lance Formation (Maastrichtian), Wyoming |journal=PALAIOS |volume=33 |issue=4 |pages=164–173 |doi=10.2110/palo.2017.076 |bibcode=2018Palai..33..164M |s2cid=134871802 }}</ref>
* A study on the jaw musculature of ''[[Biology:Tyrannosaurus|Tyrannosaurus]] rex'', and its importance for reconstructions of the bite force of this species, is published by Bates & Falkingham (2018).<ref>{{Cite journal|author1=Karl T. Bates |author2=Peter L. Falkingham |year=2018 |title=The importance of muscle architecture in biomechanical reconstructions of extinct animals: a case study using ''Tyrannosaurus rex'' |journal=Journal of Anatomy |volume=233 |issue=5 |pages=625–635 |doi=10.1111/joa.12874 |pmid=30129185 |pmc=6183000 |url=http://researchonline.ljmu.ac.uk/id/eprint/9364/3/The%20importance%20of%20muscle%20architecture%20in%20biomechanical%20reconstructions%20of%20extinct%20animals%20a%20case%20study%20using%20Tyrannosaurus%20rex.pdf }}</ref>
* A study on the ornithomimosaur fossils from the [[Earth:Lower Cretaceous|Lower Cretaceous]] [[Earth:Arundel Formation|Arundel Clay]] (Maryland, {{wipe|United States}}) published by Brownstein (2017), interpreting the fossils as indicative of the presence of two ornithomimosaur taxa in the Arundel,<ref>{{Cite journal|author=Chase Doran Brownstein |year=2017 |title=Description of Arundel Clay ornithomimosaur material and a reinterpretation of ''Nedcolbertia justinhofmanni'' as an "Ostrich Dinosaur": biogeographic implications |journal=PeerJ |volume=5 |page=e3110 |doi=10.7717/peerj.3110 |pmid=28286718 |pmc=5345386 |doi-access=free }}</ref> is criticized by McFeeters, Ryan & Cullen (2018).<ref>{{Cite journal|author1=Bradley McFeeters |author2=Michael J. Ryan |author3=Thomas M. Cullen |year=2018 |title=Positional variation in pedal unguals of North American ornithomimids (Dinosauria, Theropoda): a response to Brownstein (2017) |journal=Vertebrate Anatomy Morphology Palaeontology |volume=6 |pages=60–67 |doi=10.18435/vamp29283 |doi-access=free }}</ref><ref>{{Cite journal|author=Chase Doran Brownstein |year=2018 |title=Rebuttal of McFeeters, Ryan and Cullen, 2018, 'Positional variation in pedal unguals of North American ornithomimids (Dinosauria, Theropoda): A Response to Brownstein (2017)' |journal=Vertebrate Anatomy Morphology Palaeontology |volume=6 |pages=68–72 |doi=10.18435/vamp29340 |doi-access=free }}</ref><ref>{{Cite journal|author1=Bradley McFeeters |author2=Michael J. Ryan |author3=Thomas M. Cullen |year=2018 |title=Response to Brownstein (2018) 'Rebuttal of McFeeters, Ryan and Cullen, 2018' |journal=Vertebrate Anatomy Morphology Palaeontology |volume=6 |pages=73–74 |doi=10.18435/vamp29343 |doi-access=free }}</ref>
* A study on the diversity of ornithomimosaur dinosaurs from the [[Earth:Upper Cretaceous|Upper Cretaceous]] [[Earth:Nemegt Formation|Nemegt Formation]] (Mongolia) as indicated by the [[Biology:Morphology|morphology]] of their [[Biology:Manus (anatomy)|manus]] bones is published by Chinzorig ''et al.'' (2018).<ref>{{Cite journal|author1=Tsogtbaatar Chinzorig |author2=Yoshitsugu Kobayashi |author3=Khishigjav Tsogtbaatar |author4=Philip J. Currie |author5=Ryuji Takasaki |author6=Tomonori Tanaka |author7=Masaya Iijima |author8=Rinchen Barsbold |year=2018 |title=Ornithomimosaurs from the Nemegt Formation of Mongolia: manus morphological variation and diversity |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=494 |pages=91–100 |doi=10.1016/j.palaeo.2017.10.031 |bibcode=2018PPP...494...91C }}</ref>
* A study on the putative [[Biology:Beta-keratin|beta-keratin]] antibodies reported in a fossil specimen of ''[[Biology:Shuvuuia|Shuvuuia]] deserti'' by Schweitzer ''et al.'' (1999)<ref>{{Cite journal|author1=M.H. Schweitzer |author2=J.A. Watt |author3=R. Avci |author4=L. Knapp |author5=L. Chiappe |author6=M. Norell |author7=M. Marshall |year=1999 |title=Beta-keratin specific immunological reactivity in feather-like structures of the Cretaceous alvarezsaurid, ''Shuvuuia deserti'' |journal=Journal of Experimental Zoology Part B: Molecular and Developmental Evolution |volume=285 |issue=2 |pages=146–157 |pmid=10440726 |doi=10.1002/(SICI)1097-010X(19990815)285:2<146::AID-JEZ7>3.0.CO;2-A}}</ref> is published by Saitta ''et al.'' (2018), who interpret their findings as inconsistent with any protein or other original organic substance preservation in the ''Shuvuuia'' fiber.<ref>{{Cite journal|author1=Evan T. Saitta |author2=Ian Fletcher |author3=Peter Martin |author4=Michael Pittman |author5=Thomas G. Kaye |author6=Lawrence D. True |author7=Mark A. Norell |author8=Geoffrey D. Abbott |author9=Roger E. Summons |author10=Kirsty Penkman |author10-link= Kirsty Penkman |author11=Jakob Vinther |year=2018 |title=Preservation of feather fibers from the Late Cretaceous dinosaur ''Shuvuuia deserti'' raises concern about immunohistochemical analyses on fossils |journal=Organic Geochemistry |volume=125 |pages=142–151 |doi=10.1016/j.orggeochem.2018.09.008 |bibcode=2018OrGeo.125..142S |s2cid=105753275 |url=http://eprints.whiterose.ac.uk/137093/1/Saitta_et_al_feather_fibres_OG_AAM.docx |hdl=1983/70a5baa6-6565-4925-a211-3b446ec6e227 |hdl-access=free }}</ref>
* Probable [[Biology:Therizinosaur|therizinosaur]]oid eggs are described from the Upper Cretaceous Hongtuya Formation ({{wipe|China}}) by Ren ''et al.'' (2018).<ref>{{Cite journal|author1=Tian-long Ren |author2=Yu-ye Wang |author3=Zhen-guo Ning |author4=Cai-zhi Shen |author5=Xuan-yu Zhou |author6=Kohei Tanaka |author7=Yong-bo Huang |author8=Cheng-jun Zhang |author9=Jun-chang Lü |year=2018 |title=The first discovery of dinosaur eggs in Laixi area of Qingdao, Shandong Province, and sedimentary environmental analysis |journal=Acta Geoscientica Sinica |volume=39 |issue=2 |pages=241–249 |doi=10.3975/cagsb.2018.020501 }}</ref>
* A study on the anatomy of the basicranium of ''[[Biology:Nothronychus|Nothronychus]] mckinleyi'', and its implications for reconstructing the soft tissues of this species, is published by Smith, Sanders & Wolfe (2018).<ref>{{Cite journal|author1=David K. Smith |author2=R. Kent Sanders |author3=Douglas G. Wolfe |year=2018 |title=A re-evaluation of the basicranial soft tissues and pneumaticity of the therizinosaurian ''Nothronychus mckinleyi'' (Theropoda; Maniraptora) |journal=PLOS ONE |volume=13 |issue=7 |page=e0198155 |doi=10.1371/journal.pone.0198155 |pmid=30063717 |pmc=6067709 |bibcode=2018PLoSO..1398155S |doi-access=free }}</ref>
* A study on egg clutches produced by [[Biology:Oviraptorosauria|oviraptorosaur]] theropods representing a large body size range, evaluating their implications for inferring how oviraptorosaurs of different body size incubated their eggs, is published by Tanaka ''et al.'' (2018).<ref>{{Cite journal|author1=Kohei Tanaka |author2=Darla K. Zelenitsky |author3=Junchang Lü |author4=Christopher L. DeBuhr |author5=Laiping Yi |author6=Songhai Jia |author7=Fang Ding |author8=Mengli Xia |author9=Di Liu |author10=Caizhi Shen |author11=Rongjun Chen |year=2018 |title=Incubation behaviours of oviraptorosaur dinosaurs in relation to body size |journal=Biology Letters |volume=14 |issue=5 |page=20180135 |doi=10.1098/rsbl.2018.0135 |pmid=29769301 |pmc=6012691 }}</ref>
* A study evaluating the potential of the wings of ''[[Biology:Caudipteryx|Caudipteryx]]'' to produce small aerodynamic forces during terrestrial locomotion is published by Talori ''et al.'' (2018).<ref>{{Cite journal|author1=Yaser Saffar Talori |author2=Yun-Fei Liu |author3=Jing-Shan Zhao |author4=Corwin Sullivan |author5=Jingmai K. O'Connor |author6=Zhi-Heng Li |year=2018 |title=Winged forelimbs of the small theropod dinosaur ''Caudipteryx'' could have generated small aerodynamic forces during rapid terrestrial locomotion |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 17854 |doi=10.1038/s41598-018-35966-4 |pmid=30552395 |pmc=6294793 |bibcode=2018NatSR...817854T }}</ref>
* A study on the [[Biology:Morphology|morphology]] of the dentary of a member of the genus ''[[Biology:Caenagnathasia|Caenagnathasia]]'' from the Upper Cretaceous ([[Earth:Turonian|Turonian]]) [[Earth:Bissekty Formation|Bissekty Formation]] (Uzbekistan) is published by Wang, Zhang & Yang (2018).<ref>{{Cite journal|author1=Shuo Wang |author2=Qiyue Zhang |author3=Rui Yang |year=2018 |title=Reevaluation of the dentary structures of caenagnathid oviraptorosaurs (Dinosauria, Theropoda) |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 391 |doi=10.1038/s41598-017-18703-1 |pmid=29321606 |pmc=5762635 |bibcode=2018NatSR...8..391W }}</ref>
* A small [[Biology:Caenagnathidae|caenagnathid]] [[Biology:Tibia|tibia]] is described from the Upper Cretaceous ([[Earth:Maastrichtian|Maastrichtian]]) [[Earth:Horseshoe Canyon Formation|Horseshoe Canyon Formation]] (Alberta, {{wipe|Canada}}) by Funston & [[Biography:Philip J. Currie|Currie]] (2018).<ref>{{Cite journal|author1=Gregory F. Funston |author2=Philip J. Currie |year=2018 |title=A small caenagnathid tibia from the Horseshoe Canyon Formation (Maastrichtian): Implications for growth and lifestyle in oviraptorosaurs |journal=Cretaceous Research |volume=92 |pages=220–230 |doi=10.1016/j.cretres.2018.08.020 |bibcode=2018CrRes..92..220F |s2cid=134182508 }}</ref>
* New specimen of ''Citipati osmolskae'' preserved in a brooding position atop a nest of eggs is described from Ukhaa Tolgod (Mongolia) by Norell ''et al.'' (2018).<ref>{{Cite journal|author1=Mark A. Norell|author2=Amy M. Balanoff|author3=Daniel E. Barta|author4=Gregory M. Erickson|year=2018|title=A second specimen of ''Citipati osmolskae'' associated with a nest of eggs from Ukhaa Tolgod, Omnogov Aimag, Mongolia|journal=American Museum Novitates|issue=3899|pages=1–44|doi=10.1206/3899.1|hdl=2246/6858|s2cid=53057001|url=https://www.biodiversitylibrary.org/bibliography/156722}}</ref>
* Description of [[Biology:Endocast|endocast]]s of ''Citipati osmolskae'' and ''Khaan mckennai'', and a study on their implications for inferring the course of oviraptorosaur brain evolution and how it relates to the origin of the modern bird [[Biology:Brain|brain]], is published by Balanoff ''et al.'' (2018).<ref>{{Cite journal|author1=Amy M. Balanoff |author2=Mark A. Norell |author3=Aneila V. C. Hogan |author4=Gabriel S. Bever |year=2018 |title=The endocranial cavity of oviraptorosaur dinosaurs and the increasingly complex, deep history of the avian brain |journal=Brain, Behavior and Evolution |volume=91 |issue=3 |pages=125–135 |doi=10.1159/000488890 |pmid=30099460 |s2cid=51967993 }}</ref>
* Redescription of ''Hulsanpes perlei'' and a study on the phylogenetic relationships of this species is published by Cau & Madzia (2018).<ref>{{Cite journal|author1=Andrea Cau|author2=Daniel Madzia|year=2018|title=Redescription and affinities of ''Hulsanpes perlei'' (Dinosauria, Theropoda) from the Upper Cretaceous of Mongolia|journal=PeerJ|volume=6|page=e4868|doi=10.7717/peerj.4868|pmid=29868277|pmc=5978397 |doi-access=free }}</ref>
* Description of the anatomy of the postcranial skeleton of a newly discovered specimen of ''[[Biology:Buitreraptor|Buitreraptor]] gonzalezorum'' is published by Novas ''et al.'' (2018).<ref>{{Cite journal|author1=Fernando E. Novas |author2=Federico Brissón Egli |author3=Federico L. Agnolin |author4=Federico A. Gianechini |author5=Ignacio Cerda |year=2018 |title=Postcranial osteology of a new specimen of ''Buitreraptor gonzalezorum'' (Theropoda, Coelurosauria) |journal=Cretaceous Research |volume=83 |pages=127–167 |doi=10.1016/j.cretres.2017.06.003 }}</ref>
* A study on the tail anatomy of ''Buitreraptor gonzalezorum'' is published by Motta, Brissón Egli & Novas (2018).<ref>{{Cite journal|author1=Matías J. Motta |author2=Federico Brissón Egli |author3=Fernando E. Novas |year=2018 |title=Tail anatomy of ''Buitreraptor gonzalezorum'' (Theropoda, Unenlagiidae) and comparisons with other basal paravians |journal=Cretaceous Research |volume=83 |pages=168–181 |doi=10.1016/j.cretres.2017.09.004 |bibcode=2018CrRes..83..168M }}</ref>
* Description of the anatomy of the postcranial skeleton of ''Buitreraptor gonzalezorum'' based on the [[Biology:Holotype|holotype]] and referred specimens is published by Gianechini ''et al.'' (2018).<ref>{{Cite journal|author1=Federico A. Gianechini |author2=Peter J. Makovicky |author3=Sebastián Apesteguía |author4=Ignacio Cerda |year=2018 |title=Postcranial skeletal anatomy of the holotype and referred specimens of ''Buitreraptor gonzalezorum'' Makovicky, Apesteguía and Agnolín 2005 (Theropoda, Dromaeosauridae), from the Late Cretaceous of Patagonia |journal=PeerJ |volume=6 |page=e4558 |doi=10.7717/peerj.4558 |pmid=29607264 |pmc=5875404 |doi-access=free }}</ref>
* A tooth of a large [[Biology:Dromaeosauridae|dromaeosaurid]] theropod, intermediate in size between those of smaller dromaeosaurids like ''[[Biology:Saurornitholestes|Saurornitholestes]]'' and gigantic forms like ''[[Biology:Dakotaraptor|Dakotaraptor]]'', is described from the middle [[Earth:Campanian|Campanian]] Tar Heel Formation (North Carolina, {{wipe|United States}}) by Brownstein (2018).<ref>{{Cite journal|author=Chase Brownstein |year=2018 |title=A giant dromaeosaurid from North Carolina |journal=Cretaceous Research |volume=92 |pages=1–7 |doi=10.1016/j.cretres.2018.07.006 |s2cid=135459468 }}</ref>
* New specimen of ''[[Biology:Sinovenator|Sinovenator]] changii'', including a nearly complete skull and providing new information on the anatomy of the skull of this species, is described from the [[Earth:Lower Cretaceous|Lower Cretaceous]] [[Earth:Yixian Formation|Yixian Formation]] ({{wipe|China}}) by Yin, Pei & Zhou (2018).<ref>{{Cite journal|author1=Ya-Lei Yin |author2=Rui Pei |author3=Chang-Fu Zhou |year=2018 |title=Cranial morphology of ''Sinovenator changii'' (Theropoda: Troodontidae) on the new material from the Yixian Formation of western Liaoning, China |journal=PeerJ |volume=6 |page=e4977 |doi=10.7717/peerj.4977 |pmid=29942679 |pmc=6015489 |doi-access=free }}</ref>
* A study on the incubation period and incubation strategy of ''[[Biology:Troodon|Troodon]] formosus'' is published by Varricchio, Kundrát & Hogan (2018).<ref>{{Cite journal|author1=David J. Varricchio |author2=Martin Kundrát |author3=Jason Hogan |year=2018 |title=An intermediate incubation period and primitive brooding in a theropod dinosaur |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 12454 |doi=10.1038/s41598-018-30085-6 |pmid=30127534 |pmc=6102251 |bibcode=2018NatSR...812454V }}</ref>
* Description of two new specimens of ''[[Biology:Anchiornis|Anchiornis]] huxleyi'' and a study on the phylogenetic relationships of the species is published by Guo, Xu & Jia (2018).<ref>{{Cite journal|author1=Xiangqi Guo |author2=Li Xu |author3=Songhai Jia |year=2018 |title=Morphological and phylogenetic study based on new materials of ''Anchiornis huxleyi'' (Dinosauria, Theropoda) from Jianchang, western Liaoning, China |journal=Acta Geologica Sinica (English Edition) |volume=92 |issue=1 |pages=1–15 |url=http://www.geojournals.cn/dzxben/ch/reader/view_abstract.aspx?file_no=2018endzxb01001&flag=1 |doi=10.1111/1755-6724.13491 |bibcode=2018AcGlS..92....1G |s2cid=134768861 }}</ref>
* Apparent gastric pellets of ''Anchiornis'' are described by Zheng ''et al.'' (2018).<ref>{{Cite journal|author1=Xiaoting Zheng |author2=Xiaoli Wang |author3=Corwin Sullivan |author4=Xiaomei Zhang |author5=Fucheng Zhang |author6=Yan Wang |author7=Feng Li |author8=Xing Xu |year=2018 |title=Exceptional dinosaur fossils reveal early origin of avian-style digestion |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 14217 |doi=10.1038/s41598-018-32202-x |pmid=30242170 |pmc=6155034 |bibcode=2018NatSR...814217Z }}</ref>
* A study on the evolution of the anatomy of the braincase of [[Biology:Sauropodomorpha|sauropodomorph]] dinosaurs is published by Bronzati, Benson & Rauhut (2018).<ref>{{Cite journal|author1=Mario Bronzati |author2=Roger B. J. Benson |author3=Oliver W. M. Rauhut |year=2018 |title=Rapid transformation in the braincase of sauropod dinosaurs: integrated evolution of the braincase and neck in early sauropods? |journal=Palaeontology |volume=61 |issue=2 |pages=289–302 |doi=10.1111/pala.12344 |bibcode=2018Palgy..61..289B |s2cid=134495145 |url=https://ora.ox.ac.uk/objects/uuid:4505c60b-6154-4901-be4d-fdf3d56c8a95 }}</ref>
* Otero (2018) presents the inferred shoulder and forelimb musculature of sauropodomorph dinosaurs, as inferred by comparisons with living crocodiles and birds.<ref>{{Cite journal|author=Alejandro Otero |year=2018 |title=Forelimb musculature and osteological correlates in Sauropodomorpha (Dinosauria, Saurischia) |journal=PLOS ONE |volume=13 |issue=7 |page=e0198988 |doi=10.1371/journal.pone.0198988 |pmid=29975691 |pmc=6033415 |bibcode=2018PLoSO..1398988O |doi-access=free }}</ref>
* A study evaluating how hindlimb musculature of sauropodomorph dinosaurs was affected by the development of a quadrupedal stance from a bipedal one, and later in the transition from a narrow-gauge to a wide-gauge stance, is published by Klinkhamer ''et al.'' (2018).<ref>{{Cite journal|author1=Ada J. Klinkhamer |author2=Heinrich Mallison |author3=Stephen F. Poropat |author4=George H.K. Sinapius |author5=Stephen Wroe |year=2018 |title=Three-dimensional musculoskeletal modelling of the sauropodomorph hind limb: the effect of postural change on muscle leverage |journal=The Anatomical Record |volume=301 |issue=12 |pages=2145–2163 |doi=10.1002/ar.23950 |pmid=30299598 |s2cid=52940848 |doi-access=free }}</ref>
* New specimen of ''[[Biology:Buriolestes|Buriolestes]] schultzi'', providing additional information on the anatomy of this species, is described from the Upper Triassic Santa Maria Formation ({{wipe|Brazil}}) by Müller ''et al.'' (2018).<ref>{{Cite journal|author1=Rodrigo T. Müller |author2=Max C. Langer |author3=Mario Bronzati |author4=Cristian P. Pacheco |author5=Sérgio F. Cabreira |author6=Sérgio Dias-Da-Silva |s2cid=90215853 |year=2018 |title=Early evolution of sauropodomorphs: anatomy and phylogenetic relationships of a remarkably well-preserved dinosaur from the Upper Triassic of southern Brazil |journal=Zoological Journal of the Linnean Society |volume=184 |issue=4 |pages=1187–1248 |doi=10.1093/zoolinnean/zly009 }}</ref>
* Fossil of a [[Biology:Basal (phylogenetics)|basal]] sauropodomorph dinosaur (more similar to Norian forms such as ''[[Biology:Pantydraco|Pantydraco]] caducus'' and ''[[Biology:Unaysaurus|Unaysaurus]] tolentinoi'' than to Carnian taxa such as ''[[Biology:Saturnalia tupiniquim|Saturnalia tupiniquim]]'' and ''[[Biology:Pampadromaeus|Pampadromaeus]] barberenai'') found in the [[Earth:Triassic|Triassic]] locality in {{wipe|Brazil}} which also yielded the fossils of ''[[Biology:Sacisaurus|Sacisaurus]] agudoensis'' are described by Marsola ''et al.'' (2018).<ref>{{cite journal |author1=Júlio C.A. Marsola |author2=Jonathas S. Bittencourt |author3=Átila A.S. Da Rosa |author4=Agustín G. Martinelli |author5=Ana Maria Ribeiro |author6=Jorge Ferigolo |author7=Max C. Langer |year=2018 |title=New sauropodomorph and cynodont remains from the Late Triassic ''Sacisaurus'' site in southern Brazil and its stratigraphic position in the Norian Caturrita Formation |journal=Acta Palaeontologica Polonica |volume=63 |issue=4 |pages=653–669 |doi=10.4202/app.00492.2018 |doi-access=free |hdl=1843/39551 |hdl-access=free }}</ref>
* Redescription of the anatomy of the braincase of ''[[Biology:Efraasia|Efraasia]] minor'' is published by Bronzati & Rauhut (2018).<ref>{{Cite journal|author1=Mario Bronzati |author2=Oliver W. M. Rauhut |year=2018 |title=Braincase redescription of ''Efraasia minor'' Huene, 1908 (Dinosauria: Sauropodomorpha) from the Late Triassic of Germany, with comments on the evolution of the sauropodomorph braincase |journal=Zoological Journal of the Linnean Society |volume=182 |issue=1 |pages=173–224 |doi=10.1093/zoolinnean/zlx029 |url=http://osf.io/7vmwd/ }}</ref>
* A study on the anatomy and phylogenetic relationships of ''[[Biology:Sarahsaurus|Sarahsaurus]] aurifontanalis'' is published by Marsh & Rowe (2018).<ref>{{Cite journal|author1=Adam D. Marsh |author2=Timothy B. Rowe |year=2018 |title=Anatomy and systematics of the sauropodomorph ''Sarahsaurus aurifontanalis'' from the Early Jurassic Kayenta Formation |journal=PLOS ONE |volume=13 |issue=10 |page=e0204007 |doi=10.1371/journal.pone.0204007 |pmid=30304035 |pmc=6179219 |bibcode=2018PLoSO..1304007M |doi-access=free }}</ref>
* A study on the anatomy of the skull of ''[[Biology:Massospondylus|Massospondylus]] carinatus'' is published by Chapelle & Choiniere (2018).<ref>{{Cite journal|author1=Kimberley E.J. Chapelle |author2=Jonah N. Choiniere |year=2018 |title=A revised cranial description of ''Massospondylus carinatus'' Owen (Dinosauria: Sauropodomorpha) based on computed tomographic scans and a review of cranial characters for basal Sauropodomorpha |journal=PeerJ |volume=6 |page=e4224 |doi=10.7717/peerj.4224 |pmid=29340238 |pmc=5768178 |doi-access=free }}</ref>
* Xing ''et al.'' (2018) describe a bone abnormality in a rib of a specimen of ''[[Biology:Lufengosaurus|Lufengosaurus]] huenei'' from the Lower Jurassic [[Earth:Fengjiahe Formation|Fengjiahe Formation]] ({{wipe|China}}), possibly caused by a failed predator attack.<ref>{{Cite journal|author1=Lida Xing |author2=Bruce M. Rothschild |author3=Patrick S. Randolph-Quinney |author4=Yi Wang |author5=Alexander H. Parkinson |author6=Hao Ran |year=2018 |title=Possible bite-induced abscess and osteomyelitis in ''Lufengosaurus'' (Dinosauria: sauropodomorph) from the Lower Jurassic of the Yimen Basin, China |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 5045 |doi=10.1038/s41598-018-23451-x |pmid=29568005 |pmc=5864883 |bibcode=2018NatSR...8.5045X }}</ref>
* A study on the [[Biology:Osteology|osteology]] of the [[Biology:Sauropodomorpha|sauropodomorph]] ''[[Biology:Pulanesaura|Pulanesaura]] eocollum'' is published by Mcphee & Choiniere (2018).<ref>{{Cite journal|author1=Blair W. Mcphee |author2=Jonah N. Choiniere |year=2018 |title=The osteology of ''Pulanesaura eocollum'': implications for the inclusivity of Sauropoda (Dinosauria) |journal=Zoological Journal of the Linnean Society |volume=182 |issue=4 |pages=830–861 |doi=10.1093/zoolinnean/zlx074 }}</ref>
* A study on the microstructure of the [[Biology:Long bone|long bone]]s of ''[[Biology:Antetonitrus|Antetonitrus]] ingenipes'' is published by Krupandan, Chinsamy-Turan & Pol (2018).<ref>{{Cite journal|author1=Emil Krupandan |author2=Anusuya Chinsamy-Turan |author3=Diego Pol |year=2018 |title=The long bone histology of the sauropodomorph, ''Antetonitrus ingenipes'' |journal=The Anatomical Record |volume=301 |issue=9 |pages=1506–1518 |doi=10.1002/ar.23898 |pmid=30312030 |s2cid=52961070 |doi-access=free }}</ref>
* A study on the geological age of the type locality of ''[[Biology:Vulcanodon|Vulcanodon]] karibaensis'' is published by Viglietti ''et al.'' (2018), who interpret ''Vulcanodon'' as likely to be Sinemurian–Pliensbachian in age, and potentially ~10–15 million years older than previously thought. This makes it the oldest known sauropod.<ref>{{Cite journal|author1=Pia A. Viglietti |author2=Paul M. Barrett |author3=Tim J. Broderick |author4=Darlington Munyikwa |author5=Rowan MacNiven |author6=Lucy Broderick |author7=Kimberley Chapelle |author8=Dave Glynn |author9=Steve Edwards |author10=Michel Zondo |author11=Patricia Broderick |author12=Jonah N. Choiniere |year=2018 |title=Stratigraphy of the ''Vulcanodon'' type locality and its implications for regional correlations within the Karoo Supergroup |journal=Journal of African Earth Sciences |volume=137 |pages=149–156 |doi=10.1016/j.jafrearsci.2017.10.015 |bibcode=2018JAfES.137..149V }}</ref>
* Two neck vertebrae of a [[Biology:Eusauropoda|eusauropod]] [[Biology:Sauropoda|sauropod]] dinosaur are described from a new Early Jurassic locality in the Haute Moulouya Basin (Morocco) by Nicholl, Mannion & Barrett (2018), representing some of the earliest eusauropod fossils reported so far.<ref>{{Cite journal|author1=Cecily S.C. Nicholl |author2=Philip D. Mannion |author3=Paul M. Barrett |year=2018 |title=Sauropod dinosaur remains from a new Early Jurassic locality in the Central High Atlas of Morocco |journal=Acta Palaeontologica Polonica |volume=63 |issue=1 |pages=147–157 |doi=10.4202/app.00425.2017 |doi-access=free |hdl=10044/1/52654 |hdl-access=free }}</ref>
* A study on the phylogenetic relationships of [[Biology:Basal (phylogenetics)|basal]] members of Eusauropoda from the Early-Middle Jurassic of Patagonia, {{wipe|Argentina}} is published by Holwerda & Pol (2018).<ref>{{Cite journal|author1=Femke M. Holwerda |author2=Diego Pol |year=2018 |title=Phylogenetic analysis of Gondwanan basal eusauropods from the Early-Middle Jurassic of Patagonia, Argentina |journal=Spanish Journal of Palaeontology |volume=33 |issue=2 |pages=289–298 |doi=10.7203/sjp.33.2.13604 |url=https://ojs.uv.es/index.php/sjpalaeontology/article/view/13604 |doi-access=free |hdl=11336/178018 |hdl-access=free }}</ref>
* A study on the age of the Lower [[Earth:Shaximiao Formation|Shaximiao Formation]] of the Sichuan Basin, southwest {{wipe|China}} (preserving abundant sauropod fossils, including the ''[[Biology:Shunosaurus|Shunosaurus]]''-''Omeisaurus'' fauna) is published by Wang ''et al.'' (2018).<ref>{{Cite journal|author1=Jun Wang |author2=Yong Ye |author3=Rui Pei |author4=Yamin Tian |author5=Chongqin Feng |author6=Daran Zheng |author7=Su-Chin Chang |year=2018 |title=Age of Jurassic basal sauropods in Sichuan, China: A reappraisal of basal sauropod evolution |journal=GSA Bulletin |volume=130 |issue=9–10 |pages=1493–1500 |doi=10.1130/B31910.1 |bibcode=2018GSAB..130.1493W }}</ref>
* Redescription of the complete series of the neck vertebrae of ''Xinjiangtitan shanshanesis'' is published online by Zhang ''et al.'' (2018).<ref>{{Cite journal|author1=Xiao-Qin Zhang |author2=Da-Qing Li |author3=Yan Xie |author4=Hai-Lu You |year=2018 |title=Redescription of the cervical vertebrae of the mamenchisaurid sauropod ''Xinjiangtitan shanshanesis'' Wu ''et al.'' 2013 |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=6 |pages=803–822 |doi=10.1080/08912963.2018.1539970 |s2cid=91680936 }}</ref>
* A study on the skull anatomy of ''[[Biology:Bellusaurus|Bellusaurus]] sui'' is published by Moore ''et al.'' (2018).<ref>{{Cite journal|author1=Andrew J. Moore |author2=Jinyou Mo |author3=James M. Clark |author4=Xing Xu |year=2018 |title=Cranial anatomy of ''Bellusaurus sui'' (Dinosauria: Eusauropoda) from the Middle-Late Jurassic Shishugou Formation of northwest China and a review of sauropod cranial ontogeny |journal=PeerJ |volume=6 |page=e4881 |doi=10.7717/peerj.4881 |pmid=29868283 |pmc=5985764 |doi-access=free }}</ref>
* Description of a skull of a juvenile sauropod belonging or related to the genus ''[[Biology:Diplodocus|Diplodocus]]'' from the Upper Jurassic [[Earth:Morrison Formation|Morrison Formation]] (Montana, {{wipe|United States}}), representing the smallest [[Biology:Diplodocidae|diplodocid]] skull reported so far, and a study on the implications of this finding for inferring the [[Biology:Ontogeny|ontogeny]] of the skull of diplodocids, is published by Woodruff ''et al.'' (2018).<ref>{{Cite journal|author1=D. Cary Woodruff |author2=Thomas D. Carr |author3=Glenn W. Storrs |author4=Katja Waskow |author5=John B. Scannella |author6=Klara K. Nordén |author7=John P. Wilson |year=2018 |title=The smallest diplodocid skull reveals cranial ontogeny and growth-related dietary changes in the largest dinosaurs |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 14341 |doi=10.1038/s41598-018-32620-x |pmid=30310088 |pmc=6181913 |bibcode=2018NatSR...814341W }}</ref>
* Exquisitely preserved new skull of a diplodocid sauropod is described from the Upper Jurassic Morrison Formation (Wyoming, United States) by Tschopp, Mateus & Norell (2018), providing new information on the morphology of diplodocid skulls, and indicating presence of overlapping joints between the [[Biology:Maxilla|maxilla]], [[Biology:Jugal bone|jugal]], quadratojugal and the [[Biology:Lacrimal bone|lacrimal]], permitting limited anterior sliding movement of the snout.<ref>{{Cite journal|author1=Emanuel Tschopp |author2=Octávio Mateus |author3=Mark Norell |year=2018 |title=Complex overlapping joints between facial bones allowing limited anterior sliding movements of the snout in diplodocid sauropods |journal=American Museum Novitates |issue=3911 |pages=1–16 |doi=10.1206/3911.1 |hdl=2246/6913 |s2cid=53589646 |url=https://www.biodiversitylibrary.org/item/262749 }}</ref>
* ''[[Biology:Xenoposeidon|Xenoposeidon]] proneneukos'' is assigned to the family [[Biology:Rebbachisauridae|Rebbachisauridae]] by Taylor (2018).<ref>{{Cite journal|author=Michael P. Taylor |year=2018 |title=''Xenoposeidon'' is the earliest known rebbachisaurid sauropod dinosaur |journal=PeerJ |volume=6 |page=e5212 |doi=10.7717/peerj.5212 |pmid=30002991 |pmc=6037143 |doi-access=free }}</ref>
* Partial [[Biology:Sauropoda|sauropod]] (probably [[Biology:Brachiosauridae|brachiosaurid]]) [[Biology:Pes (anatomy)|pes]] is described from the Upper Jurassic [[Earth:Morrison Formation|Morrison Formation]] in the Black Hills in Wyoming ({{wipe|United States}}) by Maltese ''et al.'' (2018), representing the largest sauropod pes described to date.<ref>{{Cite journal|author1=Anthony Maltese|author2=Emanuel Tschopp|author3=Femke Holwerda|author4=David Burnham|year=2018|title=The real Bigfoot: a pes from Wyoming, USA is the largest sauropod pes ever reported and the northern-most occurrence of brachiosaurids in the Upper Jurassic Morrison Formation|journal=PeerJ|volume=6|page=e5250|doi=10.7717/peerj.5250|pmid=30065867|pmc=6063209 |doi-access=free }}</ref>
* A sauropod footprint assigned to the [[Biology:Ichnotaxon|ichnogenus]] ''Brontopodus'', produced by a trackmaker of the size exceeding that of any Mongolian dinosaur reported so far from skeletal material, is described from the [[Earth:Upper Cretaceous|Upper Cretaceous]] [[Earth:Nemegt Formation|Nemegt Formation]] (Mongolia) by Stettner, Persons & [[Biography:Philip J. Currie|Currie]] (2018).<ref>{{Cite journal|author1=Brennan Stettner |author2=W. Scott Persons IV |author3=Philip J. Currie |year=2018 |title=A giant sauropod footprint from the Nemegt Formation (Upper Cretaceous) of Mongolia |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=494 |pages=168–172 |doi=10.1016/j.palaeo.2017.10.027 |bibcode=2018PPP...494..168S }}</ref>
* A study on sauropod tracks from the Cal Orck'o tracksite in the [[Earth:Maastrichtian|Maastrichtian]] [[Earth:El Molino Formation|El Molino Formation]] (Bolivia) is published by Meyer, Marty & Belvedere (2018), who name a new ichnotaxon ''Calorckosauripus lazari'', interpreted by the authors as tracks produced by a [[Biology:Basal (phylogenetics)|basal]] titanosaur.<ref>{{Cite journal|author1=Christian A. Meyer |author2=Daniel Marty |author3=Matteo Belvedere |year=2018 |title=Titanosaur trackways from the Late Cretaceous El Molino Formation of Bolivia (Cal Orck'o, Sucre) |journal=Annales Societatis Geologorum Poloniae |volume=88 |issue=2 |pages=223–241 |doi=10.14241/asgp.2018.018 |doi-access=free }}</ref>
* A study on the bone [[Biology:Histology|histology]] of ''[[Biology:Rapetosaurus|Rapetosaurus]] krausei'' is published by Curry Rogers & Kulik (2018).<ref>{{cite journal |author1=Kristina Curry Rogers |author2=Zoe Kulik |year=2018 |title=Osteohistology of ''Rapetosaurus krausei'' (Sauropoda: Titanosauria) from the Upper Cretaceous of Madagascar |journal=Journal of Vertebrate Paleontology |volume=38 |issue=4 |pages=(1)–(24) |doi=10.1080/02724634.2018.1493689 |s2cid=92144618 }}</ref>
* New titanosaur fossil material is described from the [[Earth:Upper Cretaceous|Upper Cretaceous]] Río Huaco Formation and [[Earth:Los Llanos Formation|Los Llanos Formation]] (La Rioja Province, Argentina) by Hechenleitner ''et al.'' (2018).<ref>{{Cite journal|author1=E. Martín Hechenleitner |author2=Lucas E. Fiorelli |author3=Agustín G. Martinelli |author4=Gerald Grellet-Tinner |year=2018 |title=Titanosaur dinosaurs from the Upper Cretaceous of La Rioja province, NW Argentina |journal=Cretaceous Research |volume=85 |pages=42–59 |doi=10.1016/j.cretres.2018.01.006 |bibcode=2018CrRes..85...42H }}</ref>
* A study on the mechanical strength of the unusually thick shells of the titanosaur eggs from the Sanagasta nesting site (La Rioja, {{wipe|Argentina}}), evaluating the required force to break them from inside, is published by Hechenleitner ''et al.'' (2018), who interpret their findings as indicating that thinning of outer eggshells was necessary for successful hatchings.<ref>{{Cite journal|author1=E. Martín Hechenleitner |author2=Jeremías R. A. Taborda |author3=Lucas E. Fiorelli |author4=Gerald Grellet-Tinner |author5=Segundo R. Nuñez-Campero |year=2018 |title=Biomechanical evidence suggests extensive eggshell thinning during incubation in the Sanagasta titanosaur dinosaurs |journal=PeerJ |volume=6 |page=e4971 |doi=10.7717/peerj.4971 |pmid=29910984 |pmc=6003389 |doi-access=free }}</ref>
* Description of new fossil material of ''[[Biology:Atsinganosaurus|Atsinganosaurus]] velauciensis'' from the [[Earth:Upper Cretaceous|Upper Cretaceous]] Argiles et Grès à Reptiles Formation ({{wipe|France}}) and a study on the phylogenetic relationships of this species is published by Díez Díaz ''et al.'' (2018).<ref>{{cite journal |author1=Verónica Díez Díaz |author2=Géraldine Garcia |author3=Xabier Pereda Suberbiola |author4=Benjamin Jentgen-Ceschino |author5=Koen Stein |author6=Pascal Godefroit |author7=Xavier Valentin |year=2018 |title=The titanosaurian dinosaur ''Atsinganosaurus velauciensis'' (Sauropoda) from the Upper Cretaceous of southern France: New material, phylogenetic affinities, and palaeobiogeographical implications |journal=Cretaceous Research |volume=91 |pages=429–456 |doi=10.1016/j.cretres.2018.06.015 |bibcode=2018CrRes..91..429D |s2cid=134977876 }}</ref>
* Ibiricu, Martínez & Casal (2018) present the reconstruction of the pelvic and hindlimb musculature of ''[[Biology:Epachthosaurus|Epachthosaurus]] sciuttoi''.<ref>{{Cite journal|author1=Lucio M. Ibiricu |author2=Rubén D. Martínez |author3=Gabriel A. Casal |year=2018 |title=The pelvic and hindlimb myology of the basal titanosaur ''Epachthosaurus sciuttoi'' (Sauropoda: Titanosauria) |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=6 |pages=773–788 |doi=10.1080/08912963.2018.1535598 |s2cid=92542872 }}</ref>
* A redescription of ''[[Biology:Mendozasaurus|Mendozasaurus]] neguyelap'' based on previously undocumented remains and a study on the phylogenetic relationships of the species is published by Gonzàlez Riga ''et al.'' (2018).<ref>{{cite journal |author1=Bernardo J. Gonzàlez Riga |author2=Philip D. Mannion |author3=Stephen F. Poropat |author4=Leonardo D. Ortiz David |author5=Juan Pedro Coria |year=2018 |title=Osteology of the Late Cretaceous Argentinean sauropod dinosaur ''Mendozasaurus neguyelap'': implications for basal titanosaur relationships |journal=Zoological Journal of the Linnean Society |volume=184 |issue=1 |pages=136–181 |doi=10.1093/zoolinnean/zlx103 |hdl=10044/1/53967 |hdl-access=free }}</ref>
* Postcranial remains attributable to the [[Biology:Holotype|holotype]] specimen of ''[[Biology:Nemegtosaurus|Nemegtosaurus]] mongoliensis'' are described from the Upper Cretaceous Nemegt Formation (Mongolia) by Currie ''et al.'' (2018), who consider ''[[Biology:Opisthocoelicaudia|Opisthocoelicaudia]] skarzynskii'' to be a probable [[Biology:Synonym (taxonomy)|junior synonym]] of ''N. mongoliensis''.<ref>{{Cite journal|author1=Philip J. Currie |author2=Jeffrey A. Wilson |author3=Federico Fanti |author4=Buuvei Mainbayar |author5=Khishigjav Tsogtbaatar |year=2018 |title=Rediscovery of the type localities of the Late Cretaceous Mongolian sauropods ''Nemegtosaurus mongoliensis'' and ''Opisthocoelicaudia skarzynskii'': Stratigraphic and taxonomic implications |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=494 |pages=5–13 |doi=10.1016/j.palaeo.2017.10.035 |bibcode=2018PPP...494....5C |hdl=11585/622592 |s2cid=133748374 |hdl-access=free }}</ref>
* A study on the morphology of sauropod teeth from the [[Earth:Cenomanian|Cenomanian]] of Morocco and Algeria, comparing them to contemporaneous [[Earth:Cretaceous|Cretaceous]] sauropod tooth morphotypes (including sauropod teeth from Africa and southern Europe), is published by Holwerda ''et al.'' (2018).<ref>{{Cite journal|author1=Femke M. Holwerda |author2=Verónica Díez Díaz |author3=Alejandro Blanco |author4=Roel Montie |author5=Jelle W.F. Reumer |year=2018 |title=Late Cretaceous sauropod tooth morphotypes may provide supporting evidence for faunal connections between North Africa and Southern Europe |journal=PeerJ |volume=6 |page=e5925 |doi=10.7717/peerj.5925 |pmid=30473934 |pmc=6237117 |doi-access=free }}</ref>
* New reconstruction of the jaw musculature of [[Biology:Ornithischia|ornithischia]]n dinosaurs, rejecting the notion of presence of novel "cheek" muscle, is proposed by Nabavizadeh (2018).<ref>{{Cite journal|author=Ali Nabavizadeh |year=2018 |title=New reconstruction of cranial musculature in ornithischian dinosaurs: implications for feeding mechanisms and buccal anatomy |journal=The Anatomical Record |volume=303 |issue=2 |pages=347–362 |doi=10.1002/ar.23988 |pmid=30332723 |s2cid=52986589 |url=https://anatomypubs.onlinelibrary.wiley.com/doi/10.1002/ar.23988 |doi-access=free }}</ref>
* A study on the [[Biology:Heterodontosauridae|heterodontosaurid]] fossils from the Early Jurassic of {{wipe|Argentina}} described by Becerra ''et al.'' (2016),<ref>{{cite journal |author1=Marcos G. Becerra |author2=Diego Pol |author3=Oliver W.M. Rauhut |author4=Ignacio A. Cerda |year=2016 |title=New heterodontosaurid remains from the Cañadón Asfalto Formation: cursoriality and the functional importance of the pes in small heterodontosaurids |journal=Journal of Paleontology |volume=90 |issue=3 |pages=555–577 |doi=10.1017/jpa.2016.24 |bibcode=2016JPal...90..555B |s2cid=56436933 |url=http://nbn-resolving.de/urn:nbn:de:bvb:19-epub-48897-7 }}</ref> aiming to estimate the body size of the animal, is published by Becerra & Ramírez (2018).<ref>{{cite journal |author1=Marcos Gabriel Becerra |author2=Mariano Andres Ramírez |year=2018 |title=Locomotor morphotypes, allometry, linear regressions and the smallest sizes in Ornithischia: estimating body length using hind limb variables |journal=Ameghiniana |volume=55 |issue=5 |pages=491–516 |doi=10.5710/AMGH.27.06.2018.3189 |s2cid=133813906 }}</ref>
* A study on the teeth of ''[[Biology:Manidens|Manidens]] condorensis'', based on new material indicative of a strong [[Biology:Heterodont|heterodont]]y and a novel [[Medicine:Occlusion (dentistry)|occlusion]] type previously unreported in herbivorous dinosaurs, is published by Becerra ''et al.'' (2018).<ref>{{Cite journal|author1=Marcos G. Becerra |author2=Diego Pol |author3=Gertrud E. Rössner |author4=Oliver W. M. Rauhut |year=2018 |title=Heterodonty and double occlusion in ''Manidens condorensis'': a unique adaptation in an Early Jurassic ornithischian improving masticatory efficiency |journal=The Science of Nature |volume=105 |issue=7–8 |pages=Article number 41 |doi=10.1007/s00114-018-1569-6 |pmid=29904792 |bibcode=2018SciNa.105...41B |s2cid=49207899 }}</ref>
* Redescription of ''[[Biology:Gigantspinosaurus|Gigantspinosaurus]] sichuanensis'' and a study on the phylogenetic relationships of the species is published by Hao ''et al.'' (2018).<ref>{{Cite journal|author1=Baoqiao Hao |author2=Qiannan Zhang |author3=Guangzhao Peng |author4=Yong Ye |author5=Hailu You |year=2018 |title=Redescription of ''Gigantspinosaurus sichuanensis'' (Dinosauria, Stegosauria) from the Late Jurassic of Sichuan, Southwestern China |journal=Acta Geologica Sinica (English Edition) |volume=92 |issue=2 |pages=431–441 |url=http://www.geojournals.cn/dzxben/ch/reader/view_abstract.aspx?file_no=2018endzxb02001&flag=1 |doi=10.1111/1755-6724.13535 |bibcode=2018AcGlS..92..431H |s2cid=134162382 }}</ref>
* A study on pathological characteristics of the left [[Biology:Femur|femur]] of a specimen of ''Gigantspinosaurus sichuanensis'' from the Late Jurassic of {{wipe|China}} is published online by Hao ''et al.'' (2018), who interpret this specimen as probably affected by a bone tumor.<ref>{{Cite journal|author1=Bao-Qiao Hao |author2=Yong Ye |author3=Susannah C R. Maidment |author4=Sergio Bertazzo |author5=Guang-Zhao Peng |author6=Hai-Lu You |year=2018 |title=Femoral osteopathy in ''Gigantspinosaurus sichuanensis'' (Dinosauria: Stegosauria) from the Late Jurassic of Sichuan Basin, Southwestern China |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=8 |pages=1028–1035 |doi=10.1080/08912963.2018.1561673 |s2cid=91554634 }}</ref>
* New specimen of ''Hesperosaurus mjosi'', providing new information on the anatomy of the species and indicating that ''H. mjosi'' might have been a smaller species than ''[[Biology:Stegosaurus|Stegosaurus]] stenops'', is described from the Upper Jurassic [[Earth:Morrison Formation|Morrison Formation]] (Montana, {{wipe|United States}}) by Maidment, Woodruff & Horner (2018).<ref>{{Cite journal|author1=Susannah C. R. Maidment |author2=D. Cary Woodruff |author3=John R. Horner |year=2018 |title=A new specimen of the ornithischian dinosaur ''Hesperosaurus mjosi'' from the Upper Jurassic Morrison Formation of Montana, U.S.A., and implications for growth and size in Morrison stegosaurs |journal=Journal of Vertebrate Paleontology |volume=38 |issue=1 |page=e1406366 |doi=10.1080/02724634.2017.1406366 |bibcode=2018JVPal..38E6366M |hdl=10141/622747 |s2cid=90752660 |url=http://eprints.brighton.ac.uk/17671/1/Maidmentetal_MS_accepted.pdf }}</ref>
* Redescription of the fossil material referred to ''[[Biology:Paranthodon|Paranthodon]] africanus'' and a study on the phylogenetic relationships of this species is published by Raven & Maidment (2018).<ref>{{Cite journal|author1=Thomas J. Raven |author2=Susannah C.R. Maidment |year=2018 |title=The systematic position of the enigmatic thyreophoran dinosaur ''Paranthodon africanus'', and the use of basal exemplifiers in phylogenetic analysis |journal=PeerJ |volume=6 |page=e4529 |doi=10.7717/peerj.4529 |pmid=29576986 |pmc=5865477 |doi-access=free }}</ref>
* Probable [[Biology:Ankylosauria|ankylosauria]]n footprints are described from the Upper Jurassic Guará Formation ({{wipe|Brazil}}) by Francischini ''et al.'' (2018).<ref>{{Cite journal|author1=Heitor Francischini |author2=Marcos A. F. Sales |author3=Paula Dentzien–Dias |author4=Cesar L. Schultz |year=2018 |title=The presence of ankylosaur tracks in the Guará Formation (Brazil) and remarks on the spatial and temporal distribution of Late Jurassic dinosaurs |journal=Ichnos: An International Journal for Plant and Animal Traces |volume=25 |issue=2–3 |pages=177–191 |doi=10.1080/10420940.2017.1337573 |bibcode=2018Ichno..25..177F |s2cid=134279770 }}</ref>
* Probable ankylosaurian footprints assigned to the [[Biology:Ichnotaxon|ichnogenus]] ''Tetrapodosaurus'' are described from the Middle Jurassic (Bajocian) Zorrillo-Taberna Indifferenciadas Formation (Mexico) by Rodríguez-de la Rosa ''et al.'' (2018), representing the oldest ankylosaurian [[Biology:Trace fossil|ichnofossils]] reported so far.<ref>{{Cite journal|author1=Rubén A. Rodríguez-de la Rosa |author2=María Patricia Velasco-de León |author3=Javier Arellano-Gil |author4=Diego Enrique Lozano-Carmona |year=2018 |title=Middle Jurassic ankylosaur tracks from Mexico |journal=Boletín de la Sociedad Geológica Mexicana |volume=70 |issue=2 |pages=379–395 |doi=10.18268/BSGM2018v70n2a8 |doi-access=free }}</ref>
* A study aiming to test the hypothesis that convoluted nasal passages of ankylosaurs were efficient heat exchangers is published by Bourke, Porter & Witmer (2018).<ref>{{Cite journal|author1=Jason M. Bourke|author2=Wm. Ruger Porter|author3=Lawrence M. Witmer|year=2018|title=Convoluted nasal passages function as efficient heat exchangers in ankylosaurs (Dinosauria: Ornithischia: Thyreophora)|journal=PLOS ONE|volume=13|issue=12|page=e0207381|doi=10.1371/journal.pone.0207381|pmid=30566469|pmc=6300222|bibcode=2018PLoSO..1307381B|doi-access=free}}</ref>
* A study on the [[Biology:Neuroanatomy|neuroanatomy]] of [[Biology:Ankylosauridae|ankylosaurid]] dinosaurs based on [[Biology:Skull|skull]] [[Biology:Endocast|endocast]]s of ''Talarurus plicatospineus'' and ''[[Biology:Tarchia|Tarchia]] teresae'' is published by Paulina-Carabajal ''et al.'' (2018).<ref>{{Cite journal|author1=Ariana Paulina-Carabajal |author2=Yuong-Nam Lee |author3=Yoshitsugu Kobayashi |author4=Hang-Jae Lee |author5=Philip J. Currie |year=2018 |title=Neuroanatomy of the ankylosaurid dinosaurs ''Tarchia teresae'' and ''Talarurus plicatospineus'' from the Upper Cretaceous of Mongolia, with comments on endocranial variability among ankylosaurs |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=494 |pages=135–146 |doi=10.1016/j.palaeo.2017.11.030 |bibcode=2018PPP...494..135P }}</ref>
* A survey of ankylosaur occurrences in the [[Earth:Cretaceous|Cretaceous]] deposits of Alberta ({{wipe|Canada}}) and a study looking for explanation of numerous instances of ankylosaur specimens preserved overturned is published by Mallon ''et al.'' (2018).<ref>{{Cite journal|author1=Jordan C. Mallon |author2=Donald M. Henderson |author3=Colleen M. McDonough |author4=W.J. Loughry |year=2018 |title=A 'bloat-and-float' taphonomic model best explains the upside-down preservation of ankylosaurs |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=497 |pages=117–127 |doi=10.1016/j.palaeo.2018.02.010 |bibcode=2018PPP...497..117M |doi-access=free }}</ref>
* A study on the teeth [[Biology:Histology|histology]] and development in ''Changchunsaurus parvus'' is published by Chen ''et al.'' (2018).<ref>{{Cite journal|author1=Jun Chen |author2=Aaron R. H. LeBlanc |author3=Liyong Jin |author4=Timothy Huang |author5=Robert R. Reisz |year=2018 |title=Tooth development, histology, and enamel microstructure in ''Changchunsaurus parvus'': Implications for dental evolution in ornithopod dinosaurs |journal=PLOS ONE |volume=13 |issue=11 |page=e0205206 |doi=10.1371/journal.pone.0205206 |pmid=30403689 |pmc=6221265 |bibcode=2018PLoSO..1305206C |doi-access=free }}</ref>
* [[Biology:Parksosauridae|Parksosaurid]] tooth and vertebral centrum is described from the [[Earth:Campanian|Campanian]] of the [[Earth:Cerro del Pueblo Formation|Cerro del Pueblo Formation]] by Rivera-Sylva ''et al.'' (2018), representing the first record of this family from Mexico.<ref>{{Cite journal|author1=Héctor E. Rivera-Sylva |author2=Eberhard Frey |author3=Wolfgang Stinnesbeck |author4=Natalia Amezcua |author5=Diana Flores Huerta |year=2018 |title=First occurrence of Parksosauridae in Mexico from the Cerro del Pueblo Formation (Late Cretaceous; Late Campanian) at Las Águilas, Coahuila |journal=Boletín de la Sociedad Geológica Mexicana |volume=70 |issue=3 |pages=779–785 |doi=10.18268/BSGM2018v70n3a10 |doi-access=free }}</ref>
* A study on the bone microstructure and [[Biology:Ontogeny|ontogeny]] of [[Biology:Basal (phylogenetics)|basal]] [[Biology:Ornithopod|ornithopod]] specimens from the [[Earth:Early Cretaceous|Early Cretaceous]] of {{wipe|Australia}} is published by Woodward, Rich & Vickers-Rich (2018), who reinterpret the tracks as produced in non-marine environment.<ref>{{Cite journal|author1=Holly N. Woodward |author2=Thomas H. Rich |author3=Patricia Vickers-Rich |year=2018 |title=The bone microstructure of polar "hypsilophodontid" dinosaurs from Victoria, Australia |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 1162 |doi=10.1038/s41598-018-19362-6 |pmid=29348463 |pmc=5773672 |bibcode=2018NatSR...8.1162W }}</ref>
* A toe bone of an ornithopod dinosaur is described from the [[Earth:Albian|Albian]] [[Earth:Hudspeth Formation|Hudspeth Formation]] (Oregon, {{wipe|United States}}) by Retallack ''et al.'' (2018), representing the first diagnostic nonavian dinosaur fossil from Oregon.<ref>{{Cite journal|author1=Gregory J. Retallack |author2=Jessica M. Theodor |author3=Edward B. Davis |author4=Samantha S. B. Hopkins |author5=Paul Z. Barrett |year=2018 |title=First dinosaur (Ornithopoda) from Early Cretaceous (Albian) of Oregon, U.S.A. |journal=Journal of Vertebrate Paleontology |volume=38 |issue=4 |pages=(1)–(5) |doi=10.1080/02724634.2018.1486847 |s2cid=91379584 |url=https://figshare.com/articles/journal_contribution/7206707 }}</ref>
* A study on the [[Biology:Ontogeny|ontogenetic]] changes in the postcranial skeleton of ''[[Biology:Dysalotosaurus|Dysalotosaurus]] lettowvorbecki'' is published by Hübner (2018).<ref>{{Cite journal|author=Tom Hübner |year=2018 |title=The postcranial ontogeny of ''Dysalotosaurus lettowvorbecki'' (Ornithischia: Iguanodontia) and implications for the evolution of ornithopod dinosaurs |journal=Palaeontographica Abteilung A |volume=310 |issue=3–6 |pages=43–120 |doi=10.1127/pala/2018/0072 |bibcode=2018PalAA.310...43H |s2cid=134500821 }}</ref>
* A study on the holotype specimen of ''[[Biology:Riabininohadros|Riabininohadros]] weberae'', revealing previously unknown elements of the [[Biology:Femur|femur]], [[Biology:Talus bone|astragalus]] and [[Biology:Calcaneus|calcaneus]], is published by Lopatin, Averianov & Alifanov (2018), who also report the second dinosaur specimen from the [[Earth:Maastrichtian|Maastrichtian]] of Crimea, a fragmentary skeleton of an advanced [[Biology:Iguanodontidae|iguanodontid]] or primitive [[Biology:Hadrosauroidea|hadrosauroid]] ornithopod.<ref>{{Cite journal|author1=A. V. Lopatin |author2=A. O. Averianov |author3=V. R. Alifanov |year=2018 |title=New data on dinosaurs of the Crimean Peninsula |journal=Doklady Biological Sciences |volume=482 |issue=1 |pages=206–209 |doi=10.1134/S0012496618050150 |pmid=30402761 |s2cid=53229462 }}</ref>
* A redescription of ''[[Biology:Iguanodon|Iguanodon]] galvensis'' and a study on the phylogenetic relationships of the species is published by Verdú ''et al.'' (2018).<ref>{{cite journal |author1=Francisco Javier Verdú |author2=Rafael Royo-Torres |author3=Alberto Cobos |author4=Luis Alcalá |year=2018 |title=New systematic and phylogenetic data about the early Barremian ''Iguanodon galvensis'' (Ornithopoda: Iguanodontoidea) from Spain |journal=Historical Biology: An International Journal of Paleobiology |volume=30 |issue=4 |pages=437–474 |doi=10.1080/08912963.2017.1287179 |bibcode=2018HBio...30..437V |s2cid=89715643 }}</ref>
* Microfossil remains of [[Earth:Early Cretaceous|Early Cretaceous]] [[Biology:Poaceae|grasses]] extracted from a specimen of ''[[Biology:Equijubus|Equijubus]] normani'' are described by Wu, You & Li (2018).<ref>{{Cite journal|author1=Yan Wu |author2=Hai-Lu You |author3=Xiao-Qiang Li |year=2018 |title=Dinosaur-associated Poaceae epidermis and phytoliths from the Early Cretaceous of China |journal=National Science Review |volume=5 |issue=5 |pages=721–727 |doi=10.1093/nsr/nwx145 |doi-access=free }}</ref>
* A study on the phylogenetic relationships of ''[[Biology:Nipponosaurus|Nipponosaurus]] sachalinensis'' is published by Takasaki ''et al.'' (2018).<ref>{{cite journal |author1=Ryuji Takasaki |author2=Kentaro Chiba |author3=Yoshitsugu Kobayashi |author4=Philip J. Currie |author5=Anthony R. Fiorillo |year=2018 |title=Reanalysis of the phylogenetic status of ''Nipponosaurus sachalinensis'' (Ornithopoda: Dinosauria) from the Late Cretaceous of Southern Sakhalin |journal=Historical Biology: An International Journal of Paleobiology |volume=30 |issue=5 |pages=694–711 |doi=10.1080/08912963.2017.1317766 |bibcode=2018HBio...30..694T |s2cid=90767373 }}</ref>
* A study on the [[Biology:Osteology|osteology]], [[Biology:Histology|histology]] and taxonomy of the [[Earth:Maastrichtian|Maastrichtian]] [[Biology:Hadrosauroidea|hadrosauroid]] specimens from the Basturs Poble bonebed ({{wipe|Spain}}) is published by Fondevilla ''et al.'' (2018).<ref>{{Cite journal|author1=Víctor Fondevilla|author2=Fabio Marco Dalla Vecchia|author3=Rodrigo Gaete|author4=Àngel Galobart|author5=Blanca Moncunill-Solé|author6=Meike Köhler|year=2018|title=Ontogeny and taxonomy of the hadrosaur (Dinosauria, Ornithopoda) remains from Basturs Poble bonebed (late early Maastrichtian, Tremp Syncline, Spain)|journal=PLOS ONE|volume=13|issue=10|page=e0206287|doi=10.1371/journal.pone.0206287|pmid=30379888|pmc=6209292 |bibcode=2018PLoSO..1306287F|doi-access=free}}</ref>
* A study on the anatomy of the perinatal specimens of ''[[Biology:Maiasaura|Maiasaura]] peeblesorum'' from the [[Earth:Campanian|Campanian]] [[Medicine:Two Medicine Formation|Two Medicine Formation]] (Montana, {{wipe|United States}}), and on their implications for understanding of the [[Biology:Morphology|morphological]] changes in the skeletons of members of this species that took place in their early growth stages, is published by Prieto-Marquez & Guenther (2018).<ref>{{cite journal |author1=Albert Prieto-Marquez |author2=Merrilee F. Guenther |year=2018 |title=Perinatal specimens of ''Maiasaura'' from the Upper Cretaceous of Montana (USA): insights into the early ontogeny of saurolophine hadrosaurid dinosaurs |journal=PeerJ |volume=6 |page=e4734 |doi=10.7717/peerj.4734 |pmid=29785343 |pmc=5960587 |doi-access=free }}</ref>
* Description of the morphology of the braincase of ''[[Biology:Secernosaurus|Secernosaurus]] koerneri'' is published by Becerra ''et al.'' (2018).<ref>{{Cite journal|author1=Marcos G. Becerra|author2=Ariana Paulina-Carabajal|author3=Penélope Cruzado-Caballero|author4=Jeremías R.A. Taborda|year=2018|title=First endocranial description of a South American hadrosaurid: The neuroanatomy of ''Secernosaurus koerneri'' from the Late Cretaceous of Argentina|journal=Acta Palaeontologica Polonica|volume=63|issue=4|pages=693–702|doi=10.4202/app.00526.2018|doi-access=free|hdl=11336/88722|hdl-access=free}}</ref>
* A [[Biology:Hadrosaurid|hadrosaurid]] nestling belonging to the genus ''[[Biology:Edmontosaurus|Edmontosaurus]]'' is described from the Upper Cretaceous ([[Earth:Maastrichtian|Maastrichtian]]) [[Earth:Hell Creek Formation|Hell Creek Formation]] (Montana), {{wipe|United States}}) by Wosik, Goodwin & Evans (2018), who interpret its anatomy as indicating that it was capable of fully quadrupedal locomotion.<ref>{{Cite journal|author1=Mateusz Wosik |author2=Mark B. Goodwin |author3=David C. Evans |year=2018 |title=A nestling-sized skeleton of ''Edmontosaurus'' (Ornithischia, Hadrosauridae) from the Hell Creek Formation of northeastern Montana, U.S.A., with an analysis of ontogenetic limb allometry |journal=Journal of Vertebrate Paleontology |volume=37 |issue=6 |page=e1398168 |doi=10.1080/02724634.2017.1398168 |s2cid=90735967 |url=https://figshare.com/articles/journal_contribution/5899300 }}</ref>
* Partial [[Biology:Sacrum|sacrum]] of a hadrosaurid dinosaur is described from the [[Earth:Campanian|Campanian]] Cape Sebastian Sandstone (Oregon, {{wipe|United States}}) by Taylor & Lucas (2018).<ref>{{Cite journal|author1=David G. Taylor |author2=Spencer G. Lucas |year=2018 |title=A Late Cretaceous (Campanian) hadrosaur sacrum from the Cape Sebastian Sandstone, Curry County, Oregon |journal=New Mexico Museum of Natural History and Science Bulletin |volume=79 |pages=695–702 |url=https://www.researchgate.net/publication/328677045 }}</ref>
* A study on the differences in shape and structural performance of the lower jaws of [[Biology:Ceratopsia|ceratopsia]]ns is published by Maiorino ''et al.'' (2018).<ref>{{cite journal |author1=Leonardo Maiorino |author2=Andrew A. Farke |author3=Tassos Kotsakis |author4=Pasquale Raia |author5=Paolo Piras |year=2018 |title=Who is the most stressed? Morphological disparity and mechanical behavior of the feeding apparatus of ceratopsian dinosaurs (Ornithischia, Marginocephalia) |journal=Cretaceous Research |volume=84 |pages=483–500 |doi=10.1016/j.cretres.2017.11.012 |bibcode=2018CrRes..84..483M }}</ref>
* A study evaluating whether skull ornaments of ceratopsians might have helped members of closely related [[Earth:Sympatry|sympatric]] species differentiate themselves is published by Knapp ''et al.'' (2018).<ref>{{Cite journal|author1=Andrew Knapp |author2=Robert J. Knell |author3=Andrew A. Farke |author4=Mark A. Loewen |author5=David W. E. Hone |year=2018 |title=Patterns of divergence in the morphology of ceratopsian dinosaurs: sympatry is not a driver of ornament evolution |journal=Proceedings of the Royal Society B: Biological Sciences |volume=285 |issue=1875 |page=20180312 |doi=10.1098/rspb.2018.0312 |pmid=29563271 |pmc=5897650 }}</ref>
* A description of the anatomy of the postcranial skeleton of ''[[Biology:Yinlong|Yinlong]] downsi'' and a study on the phylogenetic relationships of [[Biology:Basal (phylogenetics)|basal]] [[Biology:Ornithischia|ornithischia]]ns is published by Han ''et al.'' (2018).<ref>{{Cite journal|author1=Fenglu Han |author2=Catherine A. Forster |author3=Xing Xu |author4=James M. Clark |year=2018 |title=Postcranial anatomy of ''Yinlong downsi'' (Dinosauria: Ceratopsia) from the Upper Jurassic Shishugou Formation of China and the phylogeny of basal ornithischians |journal=Journal of Systematic Palaeontology |volume=16 |issue=14 |pages=1159–1187 |doi=10.1080/14772019.2017.1369185 |bibcode=2018JSPal..16.1159H |s2cid=90051025 }}</ref>
* A study on the morphology of the joint of the [[Biology:Occipital bone|occipital]] skull region and the first two cervical vertebrae of ''[[Biology:Psittacosaurus|Psittacosaurus]] sibiricus'' is published by Podlesnov (2018).<ref>{{Cite journal|author=A. V. Podlesnov |year=2018 |title=Morphology of the craniovertebral joint in ''Psittacosaurus sibiricus'' (Ornithischia: Ceratopsia) |journal=Paleontological Journal |volume=52 |issue=6 |pages=664–676 |doi=10.1134/S0031030118060096 |bibcode=2018PalJ...52..664P |s2cid=91913160 |doi-access=free }}</ref>
* A study on the dental [[Biology:Morphology|morphology]] and tooth replacement in ''[[Biology:Liaoceratops|Liaoceratops]] yanzigouensis'' is published by He ''et al.'' (2018).<ref>{{Cite journal|author1=Yiming He |author2=Peter J. Makovicky |author3=Xing Xu |author4=Hailu You |year=2018 |title=High-resolution computed tomographic analysis of tooth replacement pattern of the basal neoceratopsian ''Liaoceratops yanzigouensis'' informs ceratopsian dental evolution |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 5870 |doi=10.1038/s41598-018-24283-5 |pmid=29651146 |pmc=5897341 |bibcode=2018NatSR...8.5870H }}</ref>
* A study on the [[Biology:Ontogeny|ontogenetic]] changes of the bone microstructure in ''[[Biology:Protoceratops|Protoceratops]] andrewsi'' and their implications for the biology of this species is published by Fostowicz-Frelik & Słowiak (2018).<ref>{{Cite journal|author1=Łucja Fostowicz-Frelik |author2=Justyna Słowiak |year=2018 |title=Bone histology of ''Protoceratops andrewsi'' from the Late Cretaceous of Mongolia and its biological implications |journal=Acta Palaeontologica Polonica |volume=63 |issue=3 |pages=503–517 |doi=10.4202/app.00463.2018 |doi-access=free }}</ref>
* A study on the differences of shape of cervical vertebrae of different specimens of ''Protoceratops andrewsi'' is published by Tereschenko (2018).<ref>{{Cite journal|author=V. S. Tereschenko |year=2018 |title=On polymorphism of ''Protoceratops andrewsi'' Granger et Gregory, 1923 (Protoceratopidae, Neoceratopsia) |journal=Paleontological Journal |volume=52 |issue=4 |pages=429–444 |doi=10.1134/S0031030118040135 |bibcode=2018PalJ...52..429T |s2cid=92796229 }}</ref>
* Two isolated [[Biology:Ceratopsidae|ceratopsid]] horncores are described from the Upper Cretaceous ([[Earth:Campanian|Campanian]], ~78.5 million years ago) [[Earth:Foremost Formation|Foremost Formation]] (Alberta, {{wipe|Canada}}) by Brown (2018), representing some of the earliest ceratopsid fossils reported so far.<ref>{{Cite journal|author=Caleb M. Brown |year=2018 |title=Long-horned Ceratopsidae from the Foremost Formation (Campanian) of southern Alberta |journal=PeerJ |volume=6 |page=e4265 |doi=10.7717/peerj.4265 |pmid=29362697 |pmc=5774296 |doi-access=free }}</ref>
* Description of new fossil material of ''[[Biology:Medusaceratops|Medusaceratops]] lokii'' from the [[Earth:Upper Cretaceous|Upper Cretaceous]] [[Earth:Campanian|Campanian]] Judith River Formation (Montana, {{wipe|United States}}) and a study on the phylogenetic relationships of the species is published by Chiba ''et al.'' (2018).<ref>{{Cite journal|author1=Kentaro Chiba |author2=Michael J. Ryan |author3=Federico Fanti |author4=Mark A. Loewen |author5=David C. Evans |year=2018 |title=New material and systematic re-evaluation of ''Medusaceratops lokii'' (Dinosauria, Ceratopsidae) from the Judith River Formation (Campanian, Montana)|journal=Journal of Paleontology|volume=92|issue=2|pages=272–288|doi=10.1017/jpa.2017.62|bibcode=2018JPal...92..272C |s2cid=134031275}}</ref>
* Small marks interpreted as feeding traces are described from a partial frill of a juvenile specimen of ''[[Biology:Centrosaurus|Centrosaurus]] apertus'' from the [[Earth:Dinosaur Park Formation|Dinosaur Park Formation]] (Alberta, {{wipe|Canada}}) by Hone, Tanke & Brown (2018).<ref>{{Cite journal|author1=David W.E. Hone |author2=Darren H. Tanke |author3=Caleb M. Brown |year=2018 |title=Bite marks on the frill of a juvenile ''Centrosaurus'' from the Late Cretaceous Dinosaur Provincial Park Formation, Alberta, Canada |journal=PeerJ |volume=6 |page=e5748 |doi=10.7717/peerj.5748 |pmid=30345174 |pmc=6188009 |doi-access=free }}</ref>
* Description of three partial [[Biology:Chasmosaurinae|chasmosaurine]] skulls collected from the [[Earth:Dinosaur Park Formation|Dinosaur Park Formation]], and age-equivalent sediments of the uppermost [[Earth:Oldman Formation|Oldman Formation]], of southern Alberta ({{wipe|Canada}}) is published by Campbell ''et al.'' (2018).<ref>{{Cite journal|author1=James A. Campbell |author2=Michael J. Ryan |author3=Claudia J. Schröder-Adams |author4=David C. Evans |author5=Robert B. Holmes |year=2018 |title=New insights into chasmosaurine (Dinosauria: Ceratopsidae) skulls from the Upper Cretaceous (Campanian) of Alberta, and an update on the distribution of accessory frill fenestrae in Chasmosaurinae |journal=PeerJ |volume=6 |page=e5194 |doi=10.7717/peerj.5194 |pmid=30002987 |pmc=6034596 |doi-access=free }}</ref>
* A study on the ecological diversity of Cretaceous herbivorous dinosaurs leading up to the [[Earth:Cretaceous–Paleogene extinction event|Cretaceous–Paleogene extinction event]], as indicated by jaw and teeth morphology, is published by Nordén ''et al.'' (2018).<ref>{{Cite journal|author1=Klara K. Nordén |author2=Thomas L. Stubbs |author3=Albert Prieto-Márquez |author4=Michael J. Benton |year=2018 |title=Multifaceted disparity approach reveals dinosaur herbivory flourished before the end-Cretaceous mass extinction |journal=Paleobiology |volume=44 |issue=4 |pages=620–637 |doi=10.1017/pab.2018.26 |bibcode=2018Pbio...44..620N |s2cid=92661425 |doi-access=free |hdl=1983/36b849cc-e069-40ff-871f-6402990e7d6f |hdl-access=free }}</ref>
*A comment on the study of Baron & Barrett<ref>{{Cite journal|last1=Baron|first1=Matthew G.|last2=Barrett|first2=Paul M.|date=August 2017|title=A dinosaur missing-link? Chilesaurus and the early evolution of ornithischian dinosaurs|journal=Biology Letters|volume=13|issue=8|page=20170220|doi=10.1098/rsbl.2017.0220|pmid=28814574|issn=1744-9561|pmc=5582101}}</ref> (which reassessed the phylogenetic relationships of ''Chilesaurus diegosuarezi'') is published by Müller ''et al.''(2018).<ref>{{Cite journal|last1=Temp Müller|first1=Rodrigo|last2=Augusto Pretto|first2=Flávio|last3=Kerber|first3=Leonardo|last4=Silva-Neves|first4=Eduardo|last5=Dias-da-Silva|first5=Sérgio|date=March 2018|title=Comment on 'A dinosaur missing-link? Chilesaurus and the early evolution of ornithischian dinosaurs'|journal=Biology Letters|volume=14|issue=3|page=20170581|doi=10.1098/rsbl.2017.0581|pmid=29593074|issn=1744-9561|pmc=5897605}}</ref>
*A study on the [[Earth:Taphonomy|taphonomical]] effects of sedimentary compression on the iliac morphology of early [[Biology:Dinosaur|dinosaur]]s, using basal [[Biology:Sauropodomorpha|sauropodomorph]] specimens as a model is published by Müller, Garcia, Da-Rosa & Dias-da-Silva (2018).<ref>{{Cite journal|last1=Müller|first1=Rodrigo Temp|last2=Garcia|first2=Maurício Silva|last3=Da-Rosa|first3=Átila Augusto Stock|last4=Dias-da-Silva|first4=Sérgio|date=December 2018|title=Under pressure: Effect of sedimentary compression on the iliac morphology of early sauropodomorphs|journal=Journal of South American Earth Sciences|volume=88|pages=345–351|doi=10.1016/j.jsames.2018.09.005|bibcode=2018JSAES..88..345M|s2cid=133662021 }}</ref>

==New taxa==
{| class="wikitable sortable" align="center" width="100%"
|-
! Name
! Novelty
! Status
! Authors
! Age
! Unit
! Location
! Notes
! Images
|-
|
''[[Biology:Acantholipan|Acantholipan]]''<ref>{{Cite journal|author1=Héctor E. Rivera-Sylva |author2=Eberhard Frey |author3=Wolfgang Stinnesbeck |author4=Gerardo Carbot-Chanona |author5=Iván E. Sanchez-Uribe |author6=José Rubén Guzmán-Gutiérrez |year=2018 |title=Paleodiversity of Late Cretaceous Ankylosauria from Mexico and their phylogenetic significance |journal=Swiss Journal of Palaeontology |volume=137 |issue=1 |pages=83–93 |doi=10.1007/s13358-018-0153-1 |bibcode=2018SwJP..137...83R |s2cid=134924657 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Rivera-Sylva ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Santonian|Santonian]])
|
Pen Formation
|
{{Flag|Mexico}}
|
A member of the family [[Biology:Nodosauridae|Nodosauridae]]. Genus includes new species ''A. gonzalezi''.
|
|-
|
''[[Biology:Adynomosaurus|Adynomosaurus]]''<ref name="Prieto-Marquez2019">{{cite journal |last1=Prieto-Márquez | first1=Albert |last2=Fondevilla |first2=Víctor |last3=Sellés |first3=Albert G. |last4=Wagner |first4=Jonathan R. |last5=Galobart |last6=Àngel |year=2019 |title=''Adynomosaurus arcanus'', a new lambeosaurine dinosaur from the Late Cretaceous Ibero-Armorican Island of the European Archipelago |journal=Cretaceous Research |volume=96 |pages=19–37 |doi=10.1016/j.cretres.2018.12.002 | bibcode=2019CrRes..96...19P | s2cid=134582286 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Prieto-Márquez ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]]
|
[[Earth:Tremp Formation|Tremp Formation]]
|
{{Flag|Spain}}
|
A [[Biology:Hadrosaurid|hadrosaurid]] [[Biology:Ornithopod|ornithopod]] belonging to the subfamily [[Biology:Lambeosaurinae|Lambeosaurinae]]. Genus includes new species ''A. arcanus''. Announced in 2018; the final version of the article naming it was published in 2019.
|
|-
|
''[[Biology:Akainacephalus|Akainacephalus]]''<ref>{{Cite journal|author1=Jelle P. Wiersma |author2=Randall B. Irmis |year=2018 |title=A new southern Laramidian ankylosaurid, ''Akainacephalus johnsoni'' gen. et sp. nov., from the upper Campanian Kaiparowits Formation of southern Utah, USA |journal=PeerJ |volume=6 |page=e5016 |doi=10.7717/peerj.5016 |pmid=30065856 |pmc=6063217 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Wiersma & Irmis
|
[[Earth:Late Cretaceous|Late Cretaceous]] (late [[Earth:Campanian|Campanian]])
|
[[Earth:Kaiparowits Formation|Kaiparowits Formation]]
|
{{Flag|United States}}<br />({{Flag|Utah}})
|
A member of the family [[Biology:Ankylosauridae|Ankylosauridae]]. The type species is ''A. johnsoni''.
|
[[File:Akainacephalus_reconstructions.png|thumb|Known material and skeletal reconstructions in dorsal and lateral views]]
|-
|
''Anhuilong''<ref>{{Cite journal|author1=Xin-Xin Ren |author2=Jian-Dong Huang |author3=Hai-Lu You |year=2020 |title=The second mamenchisaurid dinosaur from the Middle Jurassic of Eastern China |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=5 |pages=602–610 |doi=10.1080/08912963.2018.1515935 |bibcode=2020HBio...32..602R |s2cid=91927243 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Ren, Huang & You
|
Middle Jurassic
|
Hongqin Formation
|
{{Flag|China}}
|
A [[Biology:Mamenchisauridae|mamenchisaurid]] [[Biology:Sauropoda|sauropod]]. Genus includes new species ''A. diboensis''. Announced in 2018; the final version of the article naming it was published in 2020.
|
|-
|
''[[Biology:Anodontosaurus|Anodontosaurus inceptus]]''<ref name=Platypelta>{{Cite journal|author=Paul Penkalski |year=2018 |title=Revised systematics of the armoured dinosaur ''Euoplocephalus'' and its allies |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=287 |issue=3 |pages=261–306 |doi=10.1127/njgpa/2018/0717 }}</ref>
|
Sp. nov
|
Valid
|
Penkalski
|
[[Earth:Late Cretaceous|Late Cretaceous]]
|
[[Earth:Dinosaur Park Formation|Dinosaur Park Formation]]
|
{{Flag|Canada}}<br />({{Flag|Alberta}})
|
A member of the family [[Biology:Ankylosauridae|Ankylosauridae]].
|
[[File:Anodontosaurus lambei.tif|thumb|Skull of [[Biology:Royal Tyrrell Museum of Palaeontology|TMP]] 1997.132.1, the holotype specimen of ''Anodontosaurus inceptus''<ref name=Platypelta />]]
|-
|
''[[Biology:Anomalipes|Anomalipes]]''<ref>{{Cite journal|author1=Yilun Yu |author2=Kebai Wang |author3=Shuqing Chen |author4=Corwin Sullivan |author5=Shuo Wang |author6=Peiye Wang |author7=Xing Xu |year=2018 |title=A new caenagnathid dinosaur from the Upper Cretaceous Wangshi Group of Shandong, China, with comments on size variation among oviraptorosaurs |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 5030 |doi=10.1038/s41598-018-23252-2 |pmid=29567954 |pmc=5864915 |bibcode=2018NatSR...8.5030Y }}</ref>
|
Gen. et sp. nov
|
Valid
|
Yu ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]]
|
[[Earth:Wangshi Group|Wangshi Group]]
|
{{Flag|China}}
|
A [[Biology:Caenagnathidae|caenagnathid]] [[Biology:Theropoda|theropod]]. The type species is ''A. zhaoi''.
|
|-
|
''[[Biology:Arkansaurus|Arkansaurus]]''<ref>{{Cite journal|author1=ReBecca K. Hunt |author2=James H. Quinn |year=2018 |title=A new ornithomimosaur from the Lower Cretaceous Trinity Group of Arkansas |journal=Journal of Vertebrate Paleontology |volume=38 |issue=1 |page=e1421209 |doi=10.1080/02724634.2017.1421209 |bibcode=2018JVPal..38E1209H |s2cid=90165402 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Hunt & Quinn
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Albian|Albian]]–[[Earth:Aptian|Aptian]])
|
[[Earth:Trinity Group (geologic formation)|Trinity Group]]
|
{{Flag|United States}}<br />({{Flag|Arkansas}})
|
An [[Biology:Ornithomimosauria|ornithomimosaur]] [[Biology:Theropoda|theropod]]. Genus includes new species ''A. fridayi''.
|
[[File:Arkansaurus NT.jpg|thumb|Reconstruction of ''Arkansaurus fridayi'']]
|-
|
''[[Biology:Avimimus|Avimimus nemegtensis]]''<ref>{{Cite journal|author1=G.F. Funston |author2=S.E. Mendonca |author3=P.J. Currie |author4=R. Barsbold |year=2018 |title=Oviraptorosaur anatomy, diversity and ecology in the Nemegt Basin |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=494 |pages=101–120 |doi=10.1016/j.palaeo.2017.10.023 |bibcode=2018PPP...494..101F }}</ref>
|
Sp. nov
|
Valid
|
Funston ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]]
|
[[Earth:Nemegt Formation|Nemegt Formation]]
|
{{Flag|Mongolia}}
|An [[Biology:Oviraptorosauria|oviraptorosauria]]n. Announced in 2017; the final version of the article naming it was published in 2018.
|
|-
|
''[[Biology:Baalsaurus|Baalsaurus]]''<ref>{{cite journal |author1=Jorge O. Calvo |author2=Bernardo Gonzalez Riga |year=2018 |title=''Baalsaurus mansillai'' gen. et sp. nov. a new titanosaurian sauropod (Late Cretaceous) from Neuquén, Patagonia, Argentina |journal=Anais da Academia Brasileira de Ciências |volume=91 |issue=Suppl. 2 |page=e20180661 |doi=10.1590/0001-3765201820180661 |pmid=30569970 |doi-access=free |hdl=11336/100692 |hdl-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Calvo & Riga
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Turonian|Turonian]]-[[Earth:Coniacian|Coniacian]])
|
[[Earth:Portezuelo Formation|Portezuelo Formation]]
|
{{Flag|Argentina}}
|
A [[Biology:Titanosaur|titanosaur]] [[Biology:Sauropoda|sauropod]]. The type species is ''B. mansillai''.
|
|-
|
''[[Biology:Bagualosaurus|Bagualosaurus]]''<ref>{{cite journal |author1=Flávio A. Pretto |author2=Max C. Langer |author3=Cesar L. Schultz |year=2018 |title=A new dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Brazil provides insights on the evolution of sauropodomorph body plan |journal=Zoological Journal of the Linnean Society |volume=185 |issue=2 |pages=388–416 |doi=10.1093/zoolinnean/zly028 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Pretto, Langer & Schultz
|
[[Earth:Late Triassic|Late Triassic]]
|
Santa Maria Formation
|
{{Flag|Brazil}}
|
An early member of [[Biology:Sauropodomorpha|Sauropodomorpha]]. Genus includes new species ''B. agudoensis''.
|
[[File:Bagualosaurus NT.jpg|thumb|Reconstruction of ''Bagualosaurus agudoensis'']]
|-
|
''[[Biology:Bannykus|Bannykus]]''<ref name=Bannykus>{{Cite journal|author1=Xing Xu |author2=Jonah Choiniere |author3=Qingwei Tan |author4=Roger B.J. Benson |author5=James Clark |author6=Corwin Sullivan |author7=Qi Zhao |author8=Fenglu Han |author9=Qingyu Ma |author10=Yiming He |author11=Shuo Wang |author12=Hai Xing |author13=Lin Tan |year=2018 |title=Two Early Cretaceous fossils document transitional stages in alvarezsaurian dinosaur evolution |journal=Current Biology |volume=28 |issue=17 |pages=2853–2860.e3 |doi=10.1016/j.cub.2018.07.057 |pmid=30146153 |s2cid=52093217 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Xu ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Aptian|Aptian]])
|
[[Earth:Bayin-Gobi Formation|Bayin-Gobi Formation]]
|
{{Flag|China}}
|
An alvarezsaurian [[Biology:Theropoda|theropod]]. The type species is ''B. wulatensis''.
|
[[File:Bannykus.png|thumb|Reconstruction of ''Bannykus wulatensis'']]
|-
|
''[[Biology:Bayannurosaurus|Bayannurosaurus]]''<ref>{{Cite journal|author1=Xing Xu |author2=Qingwei Tan |author3=Yilong Gao |author4=Zhiqiang Bao |author5=Zhigang Yin |author6=Bin Guo |author7=Junyou Wang |author8=Lin Tan |author9=Yuguang Zhang |author10=Hai Xing |year=2018 |title=A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia |journal=Science Bulletin |volume=63 |issue=9 |pages=556–563 |doi=10.1016/j.scib.2018.03.016 |pmid=36658842 |bibcode=2018SciBu..63..556X |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Xu ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]]
|
[[Earth:Bayin-Gobi Formation|Bayin-Gobi Formation]]
|
{{Flag|China}}
|
A non-hadrosauriform [[Biology:Ankylopollexia|ankylopollexia]]n [[Biology:Ornithopod|ornithopod]]. Genus includes new species ''B. perfectus''.
|
|-
|
''[[Biology:Caihong|Caihong]]''<ref>{{Cite journal|author1=Dongyu Hu |author2=Julia A. Clarke |author3=Chad M. Eliason |author4=Rui Qiu |author5=Quanguo Li |author6=Matthew D. Shawkey |author7=Cuilin Zhao |author8=Liliana D'Alba |author9=Jinkai Jiang |author10=Xing Xu |year=2018 |title=A bony-crested Jurassic dinosaur with evidence of iridescent plumage highlights complexity in early paravian evolution |journal=Nature Communications |volume=9 |issue=1 |pages=Article number 217 |doi=10.1038/s41467-017-02515-y |pmid=29335537 |pmc=5768872 |bibcode=2018NatCo...9..217H }}</ref>
|
Gen. et sp. nov
|
Valid
|
Hu ''et al.''
|
Late Jurassic (Oxfordian)
|
[[Earth:Tiaojishan Formation|Tiaojishan Formation]]
|
{{Flag|China}}
|
A [[Biology:Paraves|paravian]] [[Biology:Theropoda|theropod]]. The type species is ''C. juji''.
|
[[File:Caihong , life restoration.jpg|thumb|Reconstruction of ''Caihong juji'']]
|-
|
''[[Biology:Choconsaurus|Choconsaurus]]''<ref>{{Cite journal|author1=Edith Simón |author2=Leonardo Salgado |author3=Jorge O. Calvo |year=2018 |title=A new titanosaur sauropod from the Upper Cretaceous of Patagonia, Neuquén Province, Argentina |journal=Ameghiniana |volume=55 |issue=1 |pages=1–29 |doi=10.5710/AMGH.01.08.2017.3051 |s2cid=134332465 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Simón, Salgado & Calvo
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Cenomanian|Cenomanian]])
|
[[Earth:Huincul Formation|Huincul Formation]]
|
{{Flag|Argentina}}
|
A [[Biology:Titanosaur|titanosaur]] [[Biology:Sauropoda|sauropod]]. The type species is ''C. baileywillisi''. Announced in 2017; the final version of the article naming it was published in 2018.
|
|-
|
''[[Biology:Choyrodon|Choyrodon]]''<ref>{{Cite journal|author1=Terry A. Gates |author2=Khishigjav Tsogtbaatar |author3=Lindsay E. Zanno |author4=Tsogtbaatar Chinzorig |author5=Mahito Watabe |year=2018 |title=A new iguanodontian (Dinosauria: Ornithopoda) from the Early Cretaceous of Mongolia |journal=PeerJ |volume=6 |page=e5300 |doi=10.7717/peerj.5300 |pmid=30083450 |pmc=6078070 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Gates ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Albian|Albian]])
|
[[Earth:Khuren Dukh Formation|Khuren Dukh Formation]]
|
{{Flag|Mongolia}}
|
An [[Biology:Iguanodontia|iguanodontia]]n [[Biology:Ornithopod|ornithopod]]. The type species is ''C. barsboldi''.
|
|-
|
''[[Biology:Crittendenceratops|Crittendenceratops]]''<ref>{{Cite journal|author1=Sebastian G. Dalman |author2=John-Paul M. Hodnett |author3=Asher J. Lichtig |author4=Spencer G. Lucas |year=2018 |title=A new ceratopsid dinosaur (Centrosaurinae: Nasutoceratopsini) from the Fort Crittenden Formation, Upper Cretaceous (Campanian) of Arizona |journal=New Mexico Museum of Natural History and Science Bulletin |volume=79 |pages=141–164 |url=https://www.researchgate.net/publication/328637301 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Dalman ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Campanian|Campanian]])
|
[[Earth:Fort Crittenden Formation|Fort Crittenden Formation]]
|
{{Flag|United States}}<br />({{Flag|Arizona}})
|
A [[Biology:Centrosaurinae|centrosaurine]] [[Biology:Ceratopsidae|ceratopsid]] dinosaur belonging to the tribe Nasutoceratopsini. The type species is ''C. krzyzanowskii''.
|
[[File:Crittendenceratops shaded.jpg|thumb|Reconstruction of ''Crittendenceratops krzyzanowskii'']]
|-
|
''[[Biology:Diluvicursor|Diluvicursor]]''<ref>{{Cite journal|author1=Matthew C. Herne |author2=Alan M. Tait |author3=Vera Weisbecker |author4=Michael Hall |author5=Jay P. Nair |author6=Michael Cleeland |author7=Steven W. Salisbury |year=2018 |title=A new small-bodied ornithopod (Dinosauria, Ornithischia) from a deep, high-energy Early Cretaceous river of the Australian–Antarctic rift system |journal=PeerJ |volume=6 |page=e4113 |doi=10.7717/peerj.4113 |pmid=29340228 |pmc=5767335 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Herne ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Albian|Albian]])
|
[[Earth:Eumeralla Formation|Eumeralla Formation]]
|
{{Flag|Australia}}
|
A small-bodied [[Biology:Ornithopod|ornithopod]]. The type species is ''D. pickeringi''.
|
[[File:Diluvicursor life restoration.png|thumb|Reconstruction of ''Diluvicursor pickeringi'']]
|-
|
''[[Biology:Dryosaurus|Dryosaurus elderae]]''<ref>{{Cite journal |author1=Kenneth Carpenter |author2=Peter M. Galton |year=2018 |title=A photo documentation of bipedal ornithischian dinosaurs from the Upper Jurassic Morrison Formation, USA |journal=Geology of the Intermountain West |volume=5 |pages=167–207 |doi=10.31711/giw.v5.pp167-207 |doi-access=free }}</ref>
|
Sp. nov
|
Valid
|
[[Biography:Kenneth Carpenter|Carpenter]] & Galton
|
Late Jurassic
|
[[Earth:Morrison Formation|Morrison Formation]]
|
{{Flag|United States}}<br />({{Flag|Utah}})
|
|
|-
|
''[[Biology:Dynamoterror|Dynamoterror]]''<ref>{{Cite journal|author1=Andrew T. McDonald |author2=Douglas G. Wolfe |author3=Alton C. Dooley Jr |year=2018 |title=A new tyrannosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Menefee Formation of New Mexico |journal=PeerJ |volume=6 |page=e5749 |doi=10.7717/peerj.5749 |pmid=30324024 |pmc=6183510 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
McDonald, Wolfe & Dooley
|
[[Earth:Late Cretaceous|Late Cretaceous]] (early [[Earth:Campanian|Campanian]])
|
[[Earth:Menefee Formation|Menefee Formation]]
|
{{Flag|United States}}<br />({{Flag|New Mexico}})
|
A [[Biology:Tyrannosauridae|tyrannosaurid]] [[Biology:Theropoda|theropod]]. The type species ''D. dynastes''.
|
|-
|
''[[Biology:Ingentia|Ingentia]]''<ref>{{Cite journal|author1=Cecilia Apaldetti |author2=Ricardo N. Martínez |author3=Ignacio A. Cerda |author4=Diego Pol |author5=Oscar Alcober |year=2018 |title=An early trend towards gigantism in Triassic sauropodomorph dinosaurs |journal=Nature Ecology & Evolution |volume=2 |issue=8 |pages=1227–1232 |doi=10.1038/s41559-018-0599-y |url=https://www.researchgate.net/publication/326272978 |pmid=29988169 |bibcode=2018NatEE...2.1227A |hdl=11336/89332 |s2cid=49669597 |hdl-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Apaldetti ''et al.''
|
[[Earth:Late Triassic|Late Triassic]] (late Norian–Rhaetian)
|
[[Earth:Quebrada del Barro Formation|Quebrada del Barro Formation]]
|
{{Flag|Argentina}}
|
An early member of [[Biology:Sauropodomorpha|Sauropodomorpha]] related to ''[[Biology:Lessemsaurus|Lessemsaurus]]''. Genus includes new species ''I. prima''.
|
|-
|
''[[Biology:Invictarx|Invictarx]]''<ref>{{Cite journal|author1=Andrew T. McDonald |author2=Douglas G. Wolfe |year=2018 |title=A new nodosaurid ankylosaur (Dinosauria: Thyreophora) from the Upper Cretaceous Menefee Formation of New Mexico |journal=PeerJ |volume=6 |page=e5435 |doi=10.7717/peerj.5435 |pmid=30155354 |pmc=6110256 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
McDonald & Wolfe
|
[[Earth:Late Cretaceous|Late Cretaceous]] (early [[Earth:Campanian|Campanian]])
|
[[Earth:Menefee Formation|Menefee Formation]]
|
{{Flag|United States}}<br />({{Flag|New Mexico}})
|
A member of the family [[Biology:Nodosauridae|Nodosauridae]]. The type species is ''I. zephyri''.
|
|-
|
''Jinyunpelta''<ref>{{Cite journal|author1=Wenjie Zheng |author2=Xingsheng Jin |author3=Yoichi Azuma |author4=Qiongying Wang |author5=Kazunori Miyata |author6=Xing Xu |year=2018 |title=The most basal ankylosaurine dinosaur from the Albian–Cenomanian of China, with implications for the evolution of the tail club |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 3711 |doi=10.1038/s41598-018-21924-7 |pmid=29487376 |pmc=5829254 |bibcode=2018NatSR...8.3711Z }}</ref>
|
Gen. et sp. nov
|
|
Zheng ''et al.''
|
[[Earth:Cretaceous|Cretaceous]] ([[Earth:Albian|Albian]]–[[Earth:Cenomanian|Cenomanian]])
|
[[Earth:Liangtoutang Formation|Liangtoutang Formation]]
|
{{Flag|China}}
|
A member of the family [[Biology:Ankylosauridae|Ankylosauridae]] belonging to the subfamily [[Biology:Ankylosaurinae|Ankylosaurinae]]. The type species is ''J. sinensis''.
|
[[File:Jinyunpelta NT.jpg|thumb|Reconstruction of ''Jinyunpelta sinensis'']]
|-
|
''[[Biology:Lavocatisaurus|Lavocatisaurus]]''<ref>{{Cite journal|author1=José I. Canudo |author2=José L. Carballido |author3=Alberto Garrido |author4=Leonardo Salgado |year=2018 |title=A new rebbachisaurid sauropod from the Aptian–Albian, Lower Cretaceous Rayoso Formation, Neuquén, Argentina |journal=Acta Palaeontologica Polonica |volume=63 |issue=4 |pages=679–691 |doi=10.4202/app.00524.2018 |doi-access=free |hdl=11336/88390 |hdl-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Canudo ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Aptian|Aptian]]–early [[Earth:Albian|Albian]])
|
[[Earth:Rayoso Formation|Rayoso Formation]]
|
{{Flag|Argentina}}
|
A [[Biology:Rebbachisauridae|rebbachisaurid]] [[Biology:Sauropoda|sauropod]]. The type species is ''L. agrioensis''.
|
[[File:Lavocatisaurus Dibujo Gabriel Lio.jpg|thumb|Reconstruction of ''Lavocatisaurus agrioensis'']]
|-
|
''[[Biology:Ledumahadi|Ledumahadi]]''<ref>{{Cite journal|author1=Blair W. McPhee |author2=Roger B.J. Benson |author3=Jennifer Botha-Brink |author4=Emese M. Bordy |author5=Jonah N. Choiniere |year=2018 |title=A giant dinosaur from the earliest Jurassic of South Africa and the transition to quadrupedality in early sauropodomorphs |journal=Current Biology |volume=28 |issue=19 |pages=3143–3151.e7 |doi=10.1016/j.cub.2018.07.063 |pmid=30270189 |s2cid=52890502 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
McPhee ''et al.''
|
Early Jurassic (Hettangian-Sinemurian)
|
Elliot Formation
|
{{Flag|South Africa}}
|
An early member of Sauropodiformes. The type species is ''L. mafube''.
|
[[File:Ledumahadi NT.jpg|thumb|Reconstruction of ''Ledumahadi mafube'']]
|-
|
''[[Biology:Liaoningotitan|Liaoningotitan]]''<ref>{{Cite journal|author1=Chang-fu Zhou |author2=Wen-hao Wu |author3=Toru Sekiya |author4=Zhi-ming Dong |year=2018 |title=A new Titanosauriformes dinosaur from Jehol Biota of western Liaoning, China |journal=Global Geology |volume=37 |issue=2 |pages=327–333 |doi=10.3969/j.issn.1004-5589.2018.02.001 |url=http://sjdz.jlu.edu.cn/EN/abstract/abstract9375.shtml }}</ref>
|
Gen. et sp. nov
|
Valid
|
Zhou ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]]
|
[[Earth:Yixian Formation|Yixian Formation]]
|
{{Flag|China}}
|
A titanosauriform [[Biology:Sauropoda|sauropod]]. The type species is ''L. sinensis''.
|
|-
|
''Lingwulong''<ref>{{Cite journal|author1=Xing Xu |author2=Paul Upchurch |author3=Philip D. Mannion |author4=Paul M. Barrett |author5=Omar R. Regalado-Fernandez |author6=Jinyou Mo |author7=Jinfu Ma |author8=Hongan Liu |year=2018 |title=A new Middle Jurassic diplodocoid suggests an earlier dispersal and diversification of sauropod dinosaurs |journal=Nature Communications |volume=9 |issue=1 |pages=Article number 2700 |doi=10.1038/s41467-018-05128-1 |pmid=30042444 |pmc=6057878 |bibcode=2018NatCo...9.2700X }}</ref>
|
Gen. et sp. nov
|
Valid
|
Xu ''et al.''
|
Late Early to early Middle Jurassic (late Toarcian–Bajocian)
|
[[Earth:Yanan Formation|Yanan Formation]]
|
{{Flag|China}}
|
A [[Biology:Dicraeosauridae|dicraeosaurid]] [[Biology:Sauropoda|sauropod]]. The type species is ''L. shenqi''.
|
[[File:Lingwulong.png|thumb|Reconstruction of ''Lingwulong shenqi'']]
|-
|
''[[Biology:Macrocollum|Macrocollum]]''<ref>{{cite journal |author1=Rodrigo Temp Müller |author2=Max Cardoso Langer |author3=Sérgio Dias-da-Silva |year=2018 |title=An exceptionally preserved association of complete dinosaur skeletons reveals the oldest long-necked sauropodomorphs |journal=Biology Letters |volume=14 |issue=11 |page=20180633 |doi=10.1098/rsbl.2018.0633 |pmid=30463923 |pmc=6283919 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Müller, Langer & Dias-da-Silva
|
[[Earth:Late Triassic|Late Triassic]] (early Norian)
|
[[Earth:Caturrita Formation|Caturrita Formation]]
|
{{Flag|Brazil}}
|
An early member of [[Biology:Sauropodomorpha|Sauropodomorpha]] related to ''[[Biology:Unaysaurus|Unaysaurus]]''. Genus includes new species ''M. itaquii''.
|
[[File:Macrocollum NT.jpg|thumb|Reconstruction of ''Macrocollum itaquii'']]
|-
|
''[[Biology:Mansourasaurus|Mansourasaurus]]''<ref>{{Cite journal|author1=Hesham M. Sallam |author2=Eric Gorscak |author3=Patrick M. O'Connor |author4=Iman A. El-Dawoudi |author5=Sanaa El-Sayed |author6=Sara Saber |author7=Mahmoud A. Kora |author8=Joseph J. W. Sertich |author9=Erik R. Seiffert |author10=Matthew C. Lamanna |year=2018 |title=New Egyptian sauropod reveals Late Cretaceous dinosaur dispersal between Europe and Africa |journal=Nature Ecology & Evolution |volume=2 |issue=3 |pages=445–451 |doi=10.1038/s41559-017-0455-5 |pmid=29379183 |bibcode=2018NatEE...2..445S |s2cid=3375335 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Sallam ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Campanian|Campanian]])
|
[[Earth:Quseir Formation|Quseir Formation]]
|
{{Flag|Egypt}}
|
A [[Biology:Titanosaur|titanosaur]] [[Biology:Sauropoda|sauropod]]. The type species is ''M. shahinae''.
|
[[File:Mansourasaurus NT.jpg|thumb|Reconstruction of ''Mansourasaurus shahinae'']]
|-
|
''[[Biology:Maraapunisaurus|Maraapunisaurus]]''<ref>{{Cite journal|last=Carpenter|first=K.|date=2018|title=Maraapunisaurus fragillimus, n.g. (formerly Amphicoelias fragillimus), a basal Rebbachisaurid from the Morrison Formation (Upper Jurassic) of Colorado|url=https://www.utahgeology.org/publication/maraapunisaurus-fragillimus-n-g-formerly-amphicoelias-fragillimus-a-basal-rebbachisaurid-from-the-morrison-formation-upper-jurassic-of-colorado/|journal=Geology of the Intermountain West|volume=5|issue=9|pages=227–244|issn=2380-7601|doi=10.31711/giw.v5i0.28|access-date=2018-10-21|archive-url=https://web.archive.org/web/20181022033416/https://www.utahgeology.org/publication/maraapunisaurus-fragillimus-n-g-formerly-amphicoelias-fragillimus-a-basal-rebbachisaurid-from-the-morrison-formation-upper-jurassic-of-colorado/|archive-date=2018-10-22|url-status=dead|doi-access=free}}</ref>
|
Gen. et comb. nov
|
Valid
|
[[Biography:Kenneth Carpenter|Carpenter]]
|
Late Jurassic (Kimmeridgian—Tithonian)
|
[[Earth:Morrison Formation|Morrison Formation]]
|
{{Flag|United States}}<br />{{Flag|Colorado}}
|
A [[Biology:Rebbachisauridae|rebbachisaurid]] sauropod; a new genus for ''"Amphicoelias" fragillimus'' Cope (1878f).
|
|-
|
''[[Biology:Mongolostegus|Mongolostegus]]''<ref>{{cite journal |author1=T. A. Tumanova |author2=V. R. Alifanov |year=2018 |title=First record of stegosaur (Ornithischia, Dinosauria) from the Aptian–Albian of Mongolia |journal=Paleontological Journal |volume=52 |issue=14 |pages=1771–1779 |doi=10.1134/S0031030118140186 |bibcode=2018PalJ...52.1771T |s2cid=91559457 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Tumanova & Alifanov
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Aptian|Aptian]]–[[Earth:Albian|Albian]])
|
Dzunbain Formation
|
{{Flag|Mongolia}}
|
A member of Stegosauria. Genus includes new species ''M. exspectabilis''.
|
|-
|
''Pilmatueia''<ref>{{Cite journal|author1=Rodolfo A. Coria |author2=Guillermo J. Windholz |author3=Francisco Ortega |author4=Philip J. Currie |year=2019 |title=A new dicraeosaurid sauropod from the Lower Cretaceous (Mulichinco Formation, Valanginian, Neuquén Basin) of Argentina |journal=Cretaceous Research |volume=93 |pages=33–48 |doi=10.1016/j.cretres.2018.08.019 |bibcode=2019CrRes..93...33C |s2cid=135017018 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Coria ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Valanginian|Valanginian]])
|
[[Earth:Mulichinco Formation|Mulichinco Formation]]
|
{{Flag|Argentina}}
|
A [[Biology:Dicraeosauridae|dicraeosaurid]] [[Biology:Sauropoda|sauropod]]. The type species is ''P. faundezi''. Announced in 2018; the final version of the article naming it was published in 2019.
|
|-
|
''[[Biology:Platypelta|Platypelta]]''<ref name=Platypelta />
|
Gen. et sp. nov
|
Valid
|
Penkalski
|
[[Earth:Late Cretaceous|Late Cretaceous]]
|
[[Earth:Dinosaur Park Formation|Dinosaur Park Formation]]
|
{{Flag|Canada}}<br />({{Flag|Alberta}})
|
A member of the family [[Biology:Ankylosauridae|Ankylosauridae]]. Genus includes new species ''P. coombsi''.
|
[[File:Platypelta AMNH 5337.tiff|thumb|Skull of [[Biology:American Museum of Natural History|AMNH]] 5337, the holotype specimen of ''Platypelta coombsi''<ref name=Platypelta />]]
|-
|
''[[Biology:Qiupanykus|Qiupanykus]]''<ref>{{Cite journal|last1=Lü|first1=Jun-chang|last2=Xu|first2=Li|last3=Chang|first3=Hua-li|last4=Jia|first4=Song-hai|last5=Zhang|first5=Ji-ming|last6=Gao|first6=Dian-song|last7=Zhang|first7=Yi-yang|last8=Zhang|first8=Cheng-jun|last9=Ding|first9=Fang|date=2018|title=A new alvarezsaurid dinosaur from the Late Cretaceous Qiupa Formation of Luanchuan, Henan Province, central China|journal=China Geology|volume=1|issue=1|pages=28–35|doi=10.31035/cg2018005|bibcode=2018CGeo....1...28L |issn=2096-5192|doi-access=free}}</ref>
|
Gen. et sp. nov
|
Valid
|
Lü ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Maastrichtian|Maastrichtian]])
|
[[Earth:Qiupa Formation|Qiupa Formation]]
|
{{Flag|China}}
|
An [[Biology:Alvarezsauridae|alvarezsaurid]] theropod. The type species is ''Q. zhangi''.
|
|-
|
''[[Biology:Saltriovenator|Saltriovenator]]''<ref>{{Cite journal|author1=Cristiano Dal Sasso |author2=Simone Maganuco |author3=Andrea Cau |year=2018 |title=The oldest ceratosaurian (Dinosauria: Theropoda), from the Lower Jurassic of Italy, sheds light on the evolution of the three-fingered hand of birds |journal=PeerJ |volume=6 |page=e5976 |doi=10.7717/peerj.5976 |pmid=30588396 |pmc=6304160 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Dal Sasso ''et al.''
|
Early Jurassic (Sinemurian)
|
[[Earth:Saltrio Formation|Saltrio Formation]]
|
{{Flag|Italy}}
|
A [[Biology:Ceratosauria|ceratosauria]]n [[Biology:Theropoda|theropod]]. The type species is ''S. zanellai''.
|
[[File:Saltriovenator restoration.png|thumb|Reconstruction of ''Saltriovenator zanellai'']]
|-
|
''[[Biology:Scolosaurus|Scolosaurus thronus]]''<ref name=Platypelta />
|
Sp. nov
|
Valid
|
Penkalski
|
[[Earth:Late Cretaceous|Late Cretaceous]]
|
[[Earth:Dinosaur Park Formation|Dinosaur Park Formation]]
|
{{Flag|Canada}}<br />({{Flag|Alberta}})
|
A member of the family [[Biology:Ankylosauridae|Ankylosauridae]].
|
[[File:Euoplocephalus ROM1930.tif|thumb|Skull of ROM 1930, the holotype specimen of ''Scolosaurus thronus''<ref name=Platypelta />]]
|-
|
''[[Biology:Sibirotitan|Sibirotitan]]''<ref>{{Cite journal|author1=Alexander Averianov |author2=Stepan Ivantsov |author3=Pavel Skutschas |author4=Alexey Faingertz |author5=Sergey Leshchinskiy |year=2018 |title=A new sauropod dinosaur from the Lower Cretaceous Ilek Formation, Western Siberia, Russia |journal=Geobios |volume=51 |issue=1 |pages=1–14 |doi=10.1016/j.geobios.2017.12.004 |bibcode=2018Geobi..51....1A }}</ref>
|
Gen. et sp. nov
|
Valid
|
Averianov ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]] (probably [[Earth:Barremian|Barremian]])
|
[[Earth:Ilek Formation|Ilek Formation]]
|
{{Flag|Russia}}
|
A non-[[Biology:Titanosaur|titanosaur]]ian [[Biology:Somphospondyli|somphospondyl]] [[Biology:Sauropoda|sauropod]]. Genus includes new species ''S. astrosacralis''.
|
|-
|
''[[Biology:Thanos simonattoi|Thanos]]''<ref>{{Cite journal|author1=Rafael Delcourt |author2=Fabiano Vidoi Iori |year=2020 |title=A new Abelisauridae (Dinosauria: Theropoda) from São José do Rio Preto Formation, Upper Cretaceous of Brazil and comments on the Bauru Group fauna |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=7 |pages=917–924 |doi=10.1080/08912963.2018.1546700 |bibcode=2020HBio...32..917D |s2cid=92754354 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Delcourt & Iori
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Santonian|Santonian]])
|
São José do Rio Preto Formation
|
{{Flag|Brazil}}
|
An [[Biology:Abelisauridae|abelisaurid]] [[Biology:Theropoda|theropod]]. Genus includes new species ''T. simonattoi''. Announced in 2018; the final version of the article naming it was published in 2020.
| [[File:Thanos_simonattoi.png|200px|]]
|-
|
''[[Biology:Tratayenia|Tratayenia]]''<ref>{{Cite journal|author1=Juan D. Porfiri |author2=Rubén D. Juárez Valieri |author3=Domenica D.D. Santos |author4=Matthew C. Lamanna |year=2018 |title=A new megaraptoran theropod dinosaur from the Upper Cretaceous Bajo de la Carpa Formation of northwestern Patagonia |journal=Cretaceous Research |volume=89 |pages=302–319 |doi=10.1016/j.cretres.2018.03.014 |bibcode=2018CrRes..89..302P |s2cid=134117648 }}</ref>
|
Gen. et sp. nov
|
Valid
|
Porfiri ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Santonian|Santonian]])
|
[[Earth:Bajo de la Carpa Formation|Bajo de la Carpa Formation]]
|
{{Flag|Argentina}}
|
A [[Biology:Megaraptora|megaraptora]]n [[Biology:Theropoda|theropod]]. Genus includes new species ''T. rosalesi''.
|
|-
|
''[[Biology:Volgatitan|Volgatitan]]''<ref>{{cite journal |author1=Alexander Averianov |author2=Vladimir Efimov |year=2018 |title=The oldest titanosaurian sauropod of the Northern Hemisphere |journal=Biological Communications |volume=63 |issue=3 |pages=145–162 |doi=10.21638/spbu03.2018.301 |doi-access=free |hdl=11701/15099 |hdl-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Averianov & Efimov
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Hauterivian|Hauterivian]])
|
|
{{Flag|Russia}}<br />({{Flag|Ulyanovsk Oblast}})
|
A [[Biology:Titanosaur|titanosaur]] [[Biology:Sauropoda|sauropod]] related to members of the group [[Biology:Lognkosauria|Lognkosauria]]. The type species is ''V. simbirskiensis''.
|
|-
|
''[[Biology:Weewarrasaurus|Weewarrasaurus]]''<ref>{{Cite journal|author1=Phil R. Bell |author2=Matthew C. Herne |author3=Tom Brougham |author4=Elizabeth T. Smith |year=2018 |title=Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia |journal=PeerJ |volume=6 |page=e6008 |doi=10.7717/peerj.6008 |pmid=30533306 |pmc=6284429 |doi-access=free }}</ref>
|
Gen. et sp. nov
|
Valid
|
Bell ''et al.''
|
[[Earth:Late Cretaceous|Late Cretaceous]] ([[Earth:Cenomanian|Cenomanian]])
|
[[Earth:Griman Creek Formation|Griman Creek Formation]]
|
{{Flag|Australia}}
|
A small-bodied non-[[Biology:Iguanodontia|iguanodontia]]n [[Biology:Ornithopod|ornithopod]]. The type species is ''W. pobeni''.
|
|-
|
''[[Biology:Xiyunykus|Xiyunykus]]''<ref name=Bannykus />
|
Gen. et sp. nov
|
Valid
|
Xu ''et al.''
|
[[Earth:Early Cretaceous|Early Cretaceous]] ([[Earth:Barremian|Barremian]]-[[Earth:Aptian|Aptian]]?)
|
Tugulu Group
|
{{Flag|China}}
|
An alvarezsaurian [[Biology:Theropoda|theropod]]. The type species is ''X. pengi''.
|
[[File:Xiyunykus.png|thumb|Reconstruction of ''Xiyunykus pengi'']]
|-
|
''[[Biology:Yizhousaurus|Yizhousaurus]]''<ref>{{Cite journal|author1=Qian-Nan Zhang |author2=Hai-Lu You |author3=Tao Wang |author4=Sankar Chatterjee |year=2018 |title=A new sauropodiform dinosaur with a 'sauropodan' skull from the Lower Jurassic Lufeng Formation of Yunnan Province, China |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 13464 |doi=10.1038/s41598-018-31874-9 |pmid=30194381 |pmc=6128897 |bibcode=2018NatSR...813464Z }}</ref>
|
Gen. et sp. nov
|
|
Zhang ''et al.''
|
Early Jurassic
|
[[Earth:Lufeng Formation|Lufeng Formation]]
|
{{Flag|China}}
|
An early member of Sauropodiformes. The type species is ''Y. sunae''.
|
|-
|}

== References ==
{{Reflist}}

[[Category:Archosaurs]]

{{Sourceattribution|2018 in non-avian dinosaur paleontology}}