Tlayúa Formation
| Tlayúa Formation | |
|---|---|
| Stratigraphic range: Albian | |
| Type | Geological formation |
| Location | |
| Region | Puebla |
| Country |  Mexico |
The Tlayúa Formation is an Early Cretaceous (late Albian) geological formation near Tepexi de Rodríguez, Puebla.[1]
Paleobiota
The formation contains a diverse array of vertebrate and invertebrate fossils. About 70% of the macrofossils are osteichthyan fish.[2] Other vertebrates include chelonians, pterosaurs, lepidosaurs, and crocodiles.[3] Cyanobacteria, foraminifera, algae, gymnosperms, sponges, cnidarians, annelids, gastropods, ammonites, bivalves, arachnids, insects, isopods, anomurans, brachyurans, crinoids, echinoids, holothuroids, stelleroids, and ophiuroids, have also been recovered from the Tlayúa Formation.[3]
Lepidosaurs
| Genus | Species | Abundance | Notes |
|---|---|---|---|
|
H. mixtecus |
A possible basal iguanian | ||
|
P. tlayuaensis |
An osteoderm-covered sphenodontian | ||
|
A. pachyostosus |
An aquatic sphenodontian | ||
|
T. tepexii |
A basal scincomorph |
References
- ^ Applegate, S. (1988). "A new genus and species of a holostean belonging to the family Ophiopsidae, Teoichthys kallistos, from the Cretaceous, near Tepexi de Rodriguez, Puebla" (PDF). Revista mexicana de ciencias geológicas. 7 (2): 200–205.
- ^ Vega, FJ; TG Nyborg; MC Perrilliat; M. Montellano-Ballesteros; SRS Cevallos-Ferriz., eds. (2006). "Mesozoic Osteichthyans of Mexico". Studies on Mexican Paleontology, Topics on Geobiology 24. Dordrecht, Netherlands: Springer Verlag. pp. 169–207. ISBN 1402039859.
{{cite book}}: Cite uses deprecated parameter|authors=(help) - ^ a b "A review of the Lower Cretaceous (Tlayúa Formation: Albian) Crustacea from Tepexi de Rodríguez, Puebla, Central Mexico" (PDF). Bulletin of the Mizunami Fossil Museum (32): 25–30. 2005. Archived from the original (PDF) on 2011-06-12.
{{cite journal}}: Cite uses deprecated parameter|authors=(help); Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ An Unusual Aquatic Sphenodontian (Reptilia: Diapsida) from the Tlayua Formation (Albian), Central Mexico V. H. Reynoso Journal of Paleontology Vol. 74, No. 1 (Jan., 2000), pp. 133-148 [1]
- ^ Vega, Francisco J.; Nyborg, Torrey G.; María del Carmen Perrilliat; Marisol Montellano-Ballesteros; Sergio R.S Cevallos-Ferriz; Sara A. Quiroz-Barroso (2006). "Research on Fossil Amphibians and Reptiles". In Landman, Neil H. (ed.). Studies on Mexican Paleontology. Vol. 24. Douglas S. Jones. Dordrecht, Netherlands: Springer. p. 214. ISBN 1-4020-3882-8. Retrieved 31 May 2011.
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