Villalba de la Sierra Formation

Last updated
Villalba de la Sierra Formation
Stratigraphic range: Campanian-Maastrichtian
~84–66  Ma
Lo Hueco titanosaur excavation.jpg
Excavation of a titanosaur at Lo Hueco
Type Geological formation
Lithology
Primary Mudstone
Other Sandstone, gypsum
Location
Coordinates 40°00′N2°00′W / 40.0°N 2.0°W / 40.0; -2.0
Approximate paleocoordinates 30°42′N0°36′W / 30.7°N 0.6°W / 30.7; -0.6
Region Castilla-La Mancha
CountryFlag of Spain.svg  Spain
Extent Iberian Ranges
Type section
Named for Villalba de la Sierra
Reliefkarte Spanien mit Kanaren.png
Lightgreen pog.svg
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]

Contents

Fossil content

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

Dinosaur

Sauropods

Sauropods of the Villalba de la Sierra Formation
TaxonSpeciesPresenceMaterialsNotesImages
Lohuecotitan [4] L. pandafilandiLo Hueco.A disarticulated partial skeletonA titanosaurian sauropod
Qunkasaura [5] Q. pintiquiniestraLo Hueco.A partial skeleton belonging to a single individual.A opisthocoelicaudiine saltasaurid; closely related to Abditosaurus kuehnei .
Qunkasaura pintiquiniestra.png

Theropods

Theropods of the Villalba de la Sierra Formation
TaxonSpeciesPresenceMaterialsNotesImages
Abelisauridae Indet. [6] IndeterminatePoyosTeeth, Cranial and Postcranial ElementsA abelisaurid theropod; closely related to Arcovenator escotae .

Reptiles

Crocodiles

Crocodiles of the Villalba de la Sierra Formation
TaxonSpeciesPresenceMaterialsNotesImages
Agaresuchus [7] A. fontisensisA allodaposuchid eusuchian
Lohuecosuchus [8] L. megadontosA allodaposuchid eusuchian
Musturzabalsuchus M. spA allodaposuchid eusuchian

Turtles

Turtles of the Villalba de la Sierra Formation
TaxonSpeciesPresenceMaterialsNotesImages
Foxemys [9] F. mechinorumA bothremydid side-necked turtle
Iberoccitanemys [10] I. convenarumA bothremydid side-necked turtle

See also

Related Research Articles

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References

  1. Lo Hueco, Fuentes (G1) at Fossilworks.org
  2. Weishampel et al., 2004, pp.517-607
  3. 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. Bibcode:2013PPP...387...27P. doi:10.1016/j.palaeo.2013.07.005 . Retrieved 22 November 2022.
  4. 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. Bibcode:2016CrRes..68...49D. doi:10.1016/j.cretres.2016.08.001.
  5. 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.
  6. 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 .
  7. 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. Bibcode:2016CrRes..65..112N. doi: 10.1016/j.cretres.2016.04.018 .
  8. 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): e0140679. Bibcode:2015PLoSO..1040679N. doi: 10.1371/journal.pone.0140679 . PMC   4633049 . PMID   26535893.
  9. 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. hdl:2246/3157 . Retrieved 19 January 2012.
  10. 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. Bibcode:2012Geobi..45..219P. doi:10.1016/j.geobios.2011.03.001.

Bibliography