Tecovas Formation

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]

Tecovas Formation
Stratigraphic range: Upper Triassic, 221.5–212 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Dockum Group
Underlies	Trujillo Formation
Overlies	Santa Rosa Formation and Camp Springs Formation
Location
Region	Texas, Crosby County
Country	United States

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

Vertebrates of the Tecovas Formation
Taxa	Presence	Notes	Images
Adelobasileus[5]		A mammaliamorph
Caseosaurus[1]		A herrerasaurid similar to Chindesaurus	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

• List of dinosaur-bearing rock formations