Earth:Allaru Formation

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Allaru Formation
Stratigraphic range: Albian
~112–100 Ma
TypeGeological formation
Unit ofRolling Downs Group
UnderliesMackunda Formation
OverliesToolebuc Formation
ThicknessUp to 700 m (2,300 ft)
Lithology
PrimaryMudstone
OtherSiltstone, sandstone, limestone
Location
Coordinates [ ⚑ ] : 24°52′02.17″S 146°14′19.85″E / 24.8672694°S 146.2388472°E / -24.8672694; 146.2388472
Paleocoordinates [ ⚑ ] 51°00′S 133°06′E / 51.0°S 133.1°E / -51.0; 133.1
RegionQueensland
CountryAustralia
ExtentEromanga Basin
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The Allaru Formation, also known as the Allaru Mudstone, is a geological formation in Queensland, Australia, whose strata date back to the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]

Fossil content

Possible indeterminate ankylosaur remains are present in Queensland. Indeterminate ornithopod remains are present in Queensland.[1]

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Archosaurs

Dinosaurs

Dinosaurs of the Allaru Formation
Genus Species Location Stratigraphic position Material Notes Image
Austrosaurus[2][1][3] A. mckillopi Queensland, Australia Albian Dorsal vertebrae and possible incomplete limb remains from several individuals A somphospondylan sauropod
Kunbarrasaurus[1][4] K. ieversi Queensland, Australia Albian A parankylosaur
?Muttaburrasaurus[1] ?M. sp. Queensland, Australia Albian A large ornithopod

Reptiles

Reptiles of the Allaru Formation
Genus Species Location Stratigraphic position Material Notes Image
Elasmosauridae indet.[5] Indeterminate Albian Specimen number QMF2100, an articulated torso. Stomach cavity contains crustacean and fish remains as well as ~135 gastroliths.
Notochelone[6] N. costata Albian
Platypterygius[6] P. australis (=longmani) Albian

Fish

Fishes of the Allaru Formation
Genus Species Location Stratigraphic position Material Notes Image
Cooyoo[7] C. australis Queensland, Australia Albian
Flindersichthys[8] F. denmeadi Albian
Pachyrhizodus[9] P. marathonensis Albian Two species known from both this and the Toolebuc Formation
P. grawi
Richmondichthys[10] R. sweeti Albian An aspidorhynchid also found in the Toolebuc Formation

Invertebrates

Invertebrates of the Allaru Formation
Genus Species Location Stratigraphic position Material Notes Image
Eromangateuthis[2] E. soniae Queensland, Australia Albian "Gladius"
Goodhallites[11] G. goodhalli Albian
Inoceramus[12] I. sutherlandi Queensland , Australia Albian
Mckenziephyllia[13] M. accordensis Albian
Torynommidae[14] Torynomma quadrata Ilfracombe, Queensland Australia Albian
Homolidae[15] Lignihomola etheridgei Ilfracombe, Queensland Australia Albian

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Weishampel et al., 2004, pp.573-574
  2. ↑ 2.0 2.1 Fuchs, Dirk (2019). "Eromangateuthis N. Gen., a New Genus for a Late Albian Gladius-Bearing Giant Octobrachian (Cephalopoda: Coleoidea)". Paleontological Contributions 2019 (21): 1–3. doi:10.17161/1808.29619. ISSN 1946-0279. 
  3. ↑ Poropat, Stephen F.; Nair, Jay P.; Syme, Caitlin E.; Mannion, Philip D.; Upchurch, Paul; Hocknull, Scott A.; Cook, Alex G.; Tischler, Travis R. et al. (2017-10-02). "Reappraisal of Austrosaurus mckillopi Longman, 1933 from the Allaru Mudstone of Queensland, Australia’s first named Cretaceous sauropod dinosaur" (in en). Alcheringa: An Australasian Journal of Palaeontology 41 (4): 543–580. doi:10.1080/03115518.2017.1334826. ISSN 0311-5518. https://www.tandfonline.com/doi/full/10.1080/03115518.2017.1334826. 
  4. ↑ Leahey et al., 2015
  5. ↑ Colin R. McHenry; Alex G. Cook; Stephen Wroe (November 2005). "Bottom-Feeding Plesiosaurs". Science 310 (5745): 75. doi:10.1126/science.1117241. PMID 16210529. https://www.researchgate.net/publication/7554325. 
  6. ↑ 6.0 6.1 Kear, Benjamin P. (June 2003). "Cretaceous marine reptiles of Australia: A review of taxonomy and distribution". Cretaceous Research 24 (3): 277–303. doi:10.1016/S0195-6671(03)00046-6. Bibcode: 2003CrRes..24..277K. https://www.researchgate.net/publication/222825936. 
  7. ↑ Lovisa Wretman; Benjamin P. Kear (April 2014). "Bite marks on an ichthyodectiform fish from Australia: Possible evidence of trophic interaction in an Early Cretaceous marine ecosystem". Alcheringa 38 (2): 170–176. doi:10.1080/03115518.2014.848692. Bibcode: 2014Alch...38..170W. https://www.researchgate.net/publication/263762693. 
  8. ↑ Bartholomai, A. (2010). "Revision of Flindersichthys denmeadi Longman 1932, a marine teleost from the Lower Cretaceous of the Great Artesian Basin, Queensland". Memoirs of the Queensland Museum. 
  9. ↑ Bartholomai, A. (17 February 2012). "The pachyrhizodontid teleosts from the marine Lower Cretaceous (latest mid to late Albian) sediments of the Eromanga Basin, Queensland, Australia". Memoirs of the Queensland Museum – Nature 56 (1): 119–148. https://theworkshops.qm.qld.gov.au/About+Us/Publications/Memoirs+of+the+Queensland+Museum/MQM+Vol+56/mqmn56-1-bartholomai. 
  10. ↑ Bartholomai, A. (2004). "The large aspidorhynchid fish, Richmondichthys sweeti (Etheridge Jnr and Smith Woodward, 1891) from Albian Marine deposits of Queensland, Australia". Memoirs of the Queensland Museum. 
  11. ↑ R.A. Henderson; W.J. Kennedy (2002). "Occurrence of the ammonite Goodhallites goodhalli (J. Sowerby) in the Eromanga Basin, Queensland: an index species for the late Albian (Cretaceous)". Alcheringa 26 (2): 233–247. doi:10.1080/03115510208619254. Bibcode: 2002Alch...26..233H. https://www.researchgate.net/publication/249025903. 
  12. ↑ Patrick Mark Smith; Timothy Holland (July 2016). Cretaceous time capsules: remarkable preservation of fish and crustaceans inside the bivalve Inoceramus sutherlandi McCoy, 1865 from the Allaru Mudstone (late Albian), Eromanga Basin, Queensland. doi:10.13140/RG.2.1.2264.9842. https://www.researchgate.net/publication/305401022. 
  13. ↑ John S. Jell; Alex G. Cook; Peter A. Jell (2010). "Australian Cretaceous Cnidaria and Porifera". Alcheringa: An Australasian Journal of Palaeontology 35 (2): 241–284. doi:10.1080/03115518.2011.532322. 
  14. ↑ Woods, J. T (1953). "Brachyura from the Cretaceous of Central Queensland". Memoirs of the Queensland Museum 13: 50-57. 
  15. ↑ Woods, J. T (1953). "Brachyura from the Cretaceous of Central Queensland". Memoirs of the Queensland Museum 13: 50-57. 

Bibliography