Tecovas Formation

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Tecovas Formation
Stratigraphic range: Upper Triassic,
221.5–212 Ma
TypeGeological formation
Unit ofDockum Group
UnderliesTrujillo Formation
OverliesSanta Rosa Formation and Camp Springs Formation
Location
RegionTexas, Crosby County
CountryUnited States

The Tecovas Formation is a geological formation in the Texas panhandle and eastern New Mexico. It is one of several formations encompassed by the Late Triassic Dockum Group.[1]

The lower unit of the Cooper Canyon Formation in Garza County to the south is stratigraphically equivalent to the Tecovas Formation. It is also contiguous with the Garita Creek Formation of New Mexico, as well as partially to the Santa Rosa Formation.[2][3][4]

Vertebrate fauna

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Vertebrates of the Tecovas Formation
Taxa Presence Notes Images

Adelobasileus[5]

A mammaliamorph

Caseosaurus[1]

A herrerasaurid similar to Chindesaurus

File:Caseosaurus ilium.jpg
Caseosaurus holotype ilium UMMP 8870
Postosuchus A rauisuchian

Tecovasaurus[1]

An amniote (a possible cynodont according to Kammerer et al. 2012[6])

Tecovasuchus[7]

An aetosaur belonging to Paratypothoracisini

Soumyasaurus[8]

A silesaurid

See also

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References

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  1. ^ a b c Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Triassic, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 518–521. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)..
  2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  4. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  6. ^ Christian F. Kammerer, John J. Flynn, Lovasoa Ranivoharimanana and André R. Wyss (2012). "Ontogeny in the Malagasy Traversodontid Dadadon isaloi and a Reconsideration of its Phylogenetic Relationships". Fieldiana Life and Earth Sciences. 5: 112–125. doi:10.3158/2158-5520-5.1.112.
  7. ^ Martz, J. W.; Small, B. J. (2006). "Tecovasuchus chatterjeei, a new aetosaur (Archosauria: Stagonolepididae) from the Tecovas Formation (Carnian, Upper Triassic) of Texas". Journal of Vertebrate Paleontology. 26 (2): 308–320. doi:10.1671/0272-4634(2006)26[308:tcanaa]2.0.co;2.
  8. ^ Volkan Sarıgül; Federico Agnolín; Sankar Chatterjee (2018). "Description of a multitaxic bone assemblage from the Upper Triassic Post Quarry of Texas (Dockum group), including a new small basal dinosauriform taxon" (PDF). Historia Natural, Tercera Serie. 8 (1): 5–24.