Earth:Villalba de la Sierra Formation
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| Villalba de la Sierra Formation Stratigraphic range: Campanian-Maastrichtian ~84–66 Ma | |
|---|---|
 Excavation of a titanosaur at Lo Hueco | |
| Type | Geological formation |
| Lithology | |
| Primary | Mudstone |
| Other | Sandstone, gypsum |
| Location | |
| Coordinates | [ ⚑ ] : 40°00′N 2°00′W / 40.0°N 2.0°W |
| Paleocoordinates | [ ⚑ ] 30°42′N 0°36′W / 30.7°N 0.6°W |
| Region | Castilla-La Mancha |
| Country | Spain |
| Extent | Iberian Ranges |
| Type section | |
| Named for | Villalba de la Sierra |
  Villalba de la Sierra Formation (Spain) | |
The Villalba de la Sierra Formation is a Campanian to Maastrichtian geologic formation in Spain. Fossil dinosaur eggs have been reported from the formation, that comprises gypsiferous, grey, argillaceous mudstones and sandstones, deposited in a floodplain environment[1][2] characterised by high seasonality and variability in water availability.[3]
Fossil content
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Dinosaur
Sauropods
| Sauropods of the Villalba de la Sierra Formation | |||||
|---|---|---|---|---|---|
| Taxon/ootaxon | Species/oospecies | Presence | Materials | Notes | Images |
| Lohuecotitan[4] | L. pandafilandi | Lo Hueco. | A disarticulated partial skeleton | A titanosaurian sauropod | |
| Qunkasaura[5] | Q. pintiquiniestra | Lo Hueco. | A partial skeleton belonging to a single individual. | A opisthocoelicaudiine saltasaurid; closely related to Abditosaurus kuehnei. |  |
| Litosoolithus[6] | L. poyosi | Poyos. | Multiple partial to almost complete eggs and clutches. | Very large fusioolithid titanosaurian eggs with very thin eggshells and dispersituberculated ornamentation. | |
| Fusioolithus[7] | F. baghensis | Poyos. | Multiple partial to almost complete eggs and clutches. | Widespread fusioolithid titanosaurian eggs with ridged compactituberculated ornamentation. | |
| Megaloolithus[8] | M. siruguei | Portilla. | Isolated eggshells. | European megaloolithid titanosaurian eggs with thick eggshells and compactituberculated ornamentation. | |
Theropods
| Theropods of the Villalba de la Sierra Formation | |||||
|---|---|---|---|---|---|
| Taxon | Species | Presence | Materials | Notes | Images |
| Abelisauridae Indet.[9] | Indeterminate | Poyos | Teeth, Cranial and Postcranial Elements | A abelisaurid theropod; closely related to Arcovenator escotae. | |
| Velociraptorinae Indet.[10] | Indeterminate | A velociraptorine dromaeosaurid | |||
Reptiles
Crocodiles
| Crocodiles of the Villalba de la Sierra Formation | |||||
|---|---|---|---|---|---|
| Taxon | Species | Presence | Materials | Notes | Images |
| Agaresuchus[11] | A. fontisensis | A allodaposuchid eusuchian | |||
| Lohuecosuchus[12] | L. megadontos | A allodaposuchid eusuchian | |||
| Musturzabalsuchus | M. sp | A allodaposuchid eusuchian | |||
Turtles
| Turtles of the Villalba de la Sierra Formation | |||||
|---|---|---|---|---|---|
| Taxon | Species | Presence | Materials | Notes | Images |
| Foxemys[13] | F. mechinorum | A bothremydid side-necked turtle | |||
| Iberoccitanemys[14] | I. convenarum | A bothremydid side-necked turtle | |||
See also
- List of dinosaur-bearing rock formations
- List of stratigraphic units with few dinosaur genera
- Dinosaur eggs
- List of stratigraphic units with few dinosaur genera
References
- ↑ Lo Hueco, Fuentes (G1) at Fossilworks.org
- ↑ Weishampel et al., 2004, pp.517-607
- ↑ Peyrot, Daniel; Barroso-Barcenilla, Fernando; Cambra-Moo, Oscar (1 October 2013). "Paleoecology of the late Campanian/early Maastrichtian Fossil-Lagerstätte of "Lo Hueco" (Cuenca, Spain): Palynological insights". Palaeogeography, Palaeoclimatology, Palaeoecology 387: 27–39. doi:10.1016/j.palaeo.2013.07.005. Bibcode: 2013PPP...387...27P. https://www.sciencedirect.com/science/article/abs/pii/S003101821300326X. Retrieved 22 November 2022.
- ↑ V. Díez Díaz; P. Mocho; A. Páramo; F. Escaso; F. Marcos-Fernández; J.L. Sanz; F. Ortega (2016). "A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Lo Hueco (Cuenca, Spain)". Cretaceous Research 68: 49–60. doi:10.1016/j.cretres.2016.08.001. Bibcode: 2016CrRes..68...49D.
- ↑ Mocho, P.; Escaso, F.; Marcos-Fernández, F.; Páramo, A.; Sanz, J. L.; Vidal, D.; Ortega, F. (2024). "A Spanish saltasauroid titanosaur reveals Europe as a melting pot of endemic and immigrant sauropods in the Late Cretaceous". Communications Biology. 7. 1016. doi:10.1038/s42003-024-06653-0. PMC 11375222. PMID 39232208.
- ↑ Sanguino, F., de Celis, A., de la Horra, R., Fernández Fernández, E., Fernández Martínez, J., Marcos-Fernández, F., Pérez-García, A., Ortega, F., 2025. "A unique association of fusioolithid dinosaur eggs from the Upper Cretaceous of Spain (Poyos, central system)". Cretaceous Research 174, 106122.
- ↑ Sanguino, F., de Celis, A., de la Horra, R., Fernández Fernández, E., Fernández Martínez, J., Marcos-Fernández, F., Pérez-García, A., Ortega, F., 2025. "A unique association of fusioolithid dinosaur eggs from the Upper Cretaceous of Spain (Poyos, central system)". Cretaceous Research 174, 106122.
- ↑ Moratalla García, J. J. (1993). "Restos indirectos de dinosaurios del registro español Paleoicnología de la Cuenca de Cameros (Jurásico Superior-Cretácico Inferior) y Paleoología de Cretácico Superior". PhD Thesis.
- ↑ Malafaia, E.; Escaso, F.; Coria, R. A.; Pérez-García, A.; Ortega, F. (2024). "Theropod teeth from the Upper Cretaceous of central Spain: assessing the paleobiogeographic history of European abelisaurids". Cretaceous Research: 106072. doi:10.1016/j.cretres.2024.106072.
- ↑ Malafaia, Elisabete; Escaso, Fernando; Coria, Rodolfo A.; Ortega, Francisco (2023-01-19). "An Eudromaeosaurian Theropod from Lo Hueco (Upper Cretaceous. Central Spain)" (in en). Diversity 15 (2): 141. doi:10.3390/d15020141. ISSN 1424-2818. Bibcode: 2023Diver..15..141M.
- ↑ I. Narváez; C.A. Brochu; F. Escaso; A. Pérez-García; F. Ortega (2016). "New Spanish Late Cretaceous eusuchian reveals the synchronic and sympatric presence of two allodaposuchids". Cretaceous Research 65: 112–125. doi:10.1016/j.cretres.2016.04.018. Bibcode: 2016CrRes..65..112N.
- ↑ Iván Narváez; Christopher A. Brochu; Fernando Escaso; Adán Pérez-García; Francisco Ortega (2015). "New Crocodyliforms from Southwestern Europe and Definition of a Diverse Clade of European Late Cretaceous Basal Eusuchians". PLOS ONE 10 (11). doi:10.1371/journal.pone.0140679. PMID 26535893. Bibcode: 2015PLoSO..1040679N.
- ↑ Tong, Haiyan; Eugene S Gaffney; Eric Buffetaut (1998). "Foxemys, a new side-necked turtle (Bothremydidae, Pelomedusoides) from the late Cretaceous of France.". American Museum Novitates (3251): 1–19. https://digitallibrary.amnh.org/handle/2246/3157. Retrieved 19 January 2012.
- ↑ Adán Pérez-García; Francisco Ortega; Xabier Murelaga (2012). "A new genus of Bothremydidae (Chelonii, Pleurodira) in the Cretaceous of Southwestern Europe". Geobios 45 (2): 219–229. doi:10.1016/j.geobios.2011.03.001. Bibcode: 2012Geobi..45..219P.
Bibliography
- Díez Díaz, V.; Mocho, P.; Páramo, A.; Escaso, F.; Marcos-Fernández, F.; Sanz, J.L.; Ortega, F. (2016). "A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Lo Hueco (Cuenca, Spain)". Cretaceous Research 68: 49–60. doi:10.1016/j.cretres.2016.08.001. Bibcode: 2016CrRes..68...49D.
- Ortega, F.; Bardet, N.; Barroso-Barcenilla, F.; Callapez, P.M.; Cambra-Moo, O.; Daviero- Gómez, V.; Díez Díaz, V.; Domingo, L. et al. (2015). "The biota of the Upper Cretaceous site of "Lo Hueco" (Cuenca, Spain)". Journal of Iberian Geology 41 (1). doi:10.5209/rev_JIGE.2015.v41.n1.48657. http://revistas.ucm.es/index.php/JIGE/article/view/48657.
- Weishampel, David B., ed (2004). The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 1–880. ISBN 0-520-24209-2. https://books.google.com/books?id=vtZFDb_iw40C. Retrieved 2019-02-21.
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