| Tlayúa Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Sub-units | Lower, Middle and Upper Members |
| Underlies | Unconformity with Eocene-Oligocene Pie de Vaca Formation |
| Overlies | Orizaba Formation |
| Thickness | Lower: 50 m Middle: 35 m Upper: 40 m |
| Lithology | |
| Primary | Limestone |
| Other | Mudstone |
| Location | |
| Coordinates | 19°06′N 98°12′W / 19.1°N 98.2°W |
| Approximate paleocoordinates | 17°06′N 61°36′W / 17.1°N 61.6°W |
| Region | Puebla |
| Country |  Mexico |
| Type section | |
| Named for | Tlayúa Quarry |
  Tlayúa Formation (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][4][5]
Lepidosaurs
| Genus | Species | Abundance | Notes |
|---|---|---|---|
| Huehuecuetzpalli | H. mixtecus | A primitive lizard | |
| Pamizinsaurus | P. tlayuaensis | An osteoderm-covered sphenodontian | |
| Ankylosphenodon[6] | A. pachyostosus | An aquatic sphenodontian | |
| Tepexisaurus[7] | T. tepexii | A basal scincomorph | |
Other vertebrates
Mainly after González-Rodríguez (2016)[8]
- Araripichthys webri
- Armigatus carrenoae
- Armigatus felixi
- Axelrodichthys cf. araripensis
- Cipactlichthys scutatus
- Epaelops martinezi
- Macrosemiocotzus americanus
- Michin csernai
- Notagogus novomundi
- Nusaviichthys nerivelai
- Pachyamia mexicana
- Paraclupea seilacheri
- Quetzalichthys perrilliatae
- Ranulfoichthys dorsonudum
- Teoichthys brevipina
- Teoichthys kallistos
- Tepexichthys aranguthyrom
- Tlalocbatos applegatei
- Tlayuamichin itztli
- Unamichthys espinosai
- Ellimmichthys sp.
- cf. Amblysemius
- cf. Bananogmius
- Belonostomus sp.
- cf. Brannerion
- Lepidotes sp.
- cf. Lycoptera
- cf. Megalops
- Neoproscinetes sp.
- Notelops sp.
- cf. Paraelops
- cf. Rhacolepis
- Vinctifer sp.
- cf. Yabrudichthys
- Gonorhynchiform indet.
- Testudines indet.
Arthropods
- Archaeoniscus aranguthyorum
- Atocatlis ranulfoi
- Ixtahua benjamini
- Protaegla miniscula
- Tepexicarcinus tlayuaensis
- Sphaeromatidae sp.
Echinoderms
- Ophiactis applegatei
- Paleopentacta alencasterae
- Parapsolus tlayuensis
- Asteropecten sp.
- Echinaster sp.
- Ophidiaster sp.
- Plutonaster sp.
- Tamaria sp.
Plants
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.
- ↑ Alvarado-Ortega J, González-Rodríguez KA, Blaco-Piñón A, Espinosa-Arrubarrena L, Ovalles-Damián E (2006). "Mesozoic Osteichthyans of Mexico". In Vega, FJ, TG Nyborg, MC Perrilliat, M. Montellano-Ballesteros, SRS Cevallos-Ferriz. (eds.). Studies on Mexican Paleontology, Topics on Geobiology 24. Dordrecht, Netherlands: Springer Verlag. pp. 169–207. ISBN 1402039859.
- 1 2 Vega FJ, Bruce NL, Serrano L, Bishop GA, Perrilliat MD (2005). "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. Archived from the original (PDF) on 2011-06-12.
- ↑ Buitrón-Sánchez, Blanca Estela; Durán-Gónzalez, Alicia; Martín-Cao-Romero, Carolina; Solís-Marín, Francisco Alonso; Laguarda-Figueras, Alfredo. "Lower Cretaceous (Albian) Asteroidea (Echinodermata) from Tepexi de Rodriguez, Puebla, Mexico". Revista de Biología Tropical. 63 (2): 7–15.
- ↑ Solé, Jesús; Pi-Puig, Teresa; Bermúdez-Chávez, Cynthia; Garduño-Martínez, Diana; Alvarado-Ortega, Jesús (2022-12-05). "Mineralogy, geochemistry, and K-Ar dating of feldspars and clays from an exceptional Cretaceous fossil locality (Tlayúa, Puebla, Mexico): Insights into the depositional and diagenetic ages and processes". Chemical Geology. 612: 121134. doi:10.1016/j.chemgeo.2022.121134. ISSN 0009-2541.
- ↑ Reynoso, V. H. (2000). "An Unusual Aquatic Sphenodontian (Reptilia: Diapsida) from the Tlayua Formation (Albian), Central Mexico". Journal of Paleontology. 74 (1): 133–148. doi:10.1017/S0022336000031310. JSTOR 1306891.
- ↑ 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.
- ↑ Rodríguez, Katia González; Fielitz, Christopher. "CRETACEOUS OSTEICHTHYAN FISH ASSEMBLAGES FROM MEXICO".
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Further reading
- L. Martin-Medrano and P. Garcia-Barrera. 2006. Fossil Ophiuroids of Mexico. In F. J. Vega, T. G. Nybor, M. D. C. Perrillat, M. Montellano-Ballesteros, S. R. S. Cevallos-Ferriz, S. A. Quiroz-Barroso (eds.), Topics in Geobiology 24:115-131
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