Tlayúa Formation

The Tlayúa Formation is an Early Cretaceous (late Albian) geological formation near Tepexi de Rodríguez, Puebla.[1]

Tlayúa Formation
Stratigraphic range: Albian
TypeGeological formation
Lithology
PrimaryMudstone
Location
Coordinates19.1°N 98.2°W / 19.1; -98.2
Approximate paleocoordinates17.1°N 61.6°W / 17.1; -61.6
RegionPuebla
Country Mexico
Type section
Named forTlayúa Quarry
Tlayúa Formation (Mexico)

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
GenusSpeciesAbundanceNotes
Huehuecuetzpalli H. mixtecus A possible basal iguanian
Pamizinsaurus P. tlayuaensis An osteoderm-covered sphenodontian
Ankylosphenodon[4] A. pachyostosus An aquatic sphenodontian
Tepexisaurus[5] T. tepexii A basal scincomorph
Other fossils
gollark: Basically all cryptominers are burning huge amounts of ASIC time to generate slightly closer to 0 hashes. A collision is basically impossible unless the hash function gets broken somehow.
gollark: I like what Nim does. You can define AST→AST macros and simple substitution ones for common cases.
gollark: You can't really ensure they terminate *and* allow IO and the language's full power.
gollark: It does also seem to be a difficult problem to have large scale meshes without trusting everyone involved or manually configuring things.
gollark: Some sort of mesh networking would make more sense than everything having expensive hardware to communicate with a faraway tower, for that.

References
  1. 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.
  2. 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.CS1 maint: uses authors parameter (link)
  3. Vega, F. J., Bruce, N. L., Serrano, L., Bishop, G. A., & Perrilliat, M. D. C. (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.CS1 maint: uses authors parameter (link)
  4. 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.
  5. 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. 24. Douglas S. Jones. Dordrecht, Netherlands: Springer. p. 214. ISBN 1-4020-3882-8. Retrieved 31 May 2011.

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
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.