Cooper Canyon Formation

Cooper Canyon Formation
Stratigraphic range: Upper Triassic

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Cooper Canyon Formation; Stratigraphic range: Upper Triassic PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Dockum Group
Underlies	Redonda Formation
Overlies	Trujillo Formation, possibly Camp Springs Formation and Colorado City Formation
Location
Coordinates	33°07′37″N 101°21′58″W / 33.127°N 101.366°W
Region	Texas ; New Mexico
Country	United States
	Cooper Canyon Formation (the United States)Show map of the United StatesShow map of TexasShow all

The Cooper Canyon Formation is a geological formation of Norian age in Texas and New Mexico.^[1]^[2]

Type area of the formation is situated in Garza County, Texas. An equivalent formation in eastern New Mexico is named Bull Canyon Formation. Some researchers argue that the latter name should be abandoned.^[2]

The formation consist of reddish siltstone and mudstone with lenses of sandstone and conglomerate. Thickness of the formation in the type area is 161.5 meters. It increases to the south, and in some places exceeds 200 m. The formation contains diverse fossils, including vertebrate remains.^[2]

Vertebrate fauna[]

Archosaurs of the Cooper Canyon Formation
Taxa	Presence	Notes	Images
Chindesaurus
Desmatosuchus smalli		Partial skeletons
Postosuchus		Two skeletons
Protoavis		Two partial skeletons
Scutarx		Numerous skeletons
Technosaurus^[1]		Dentary and premaxilla.
Typothorax coccinarum		Numerous skeletons

References[]

^ Jump up to: ^a ^b 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. ISBN 0-520-24209-2.
^ Jump up to: ^a ^b ^c Lehman T., Chatterjee S., Schnable J. (1992). "The Cooper Canyon Formation (Late Triassic) of western Texas". The Texas Journal of Science. 44 (3): 349–355.CS1 maint: multiple names: authors list (link)

Links[]

Bull Canyon Formation of Chinle Group by USGS

[triassicdistribution-1] Jump up to: ^a ^b 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. ISBN 0-520-24209-2.

[Lehman_1992-2] Jump up to: ^a ^b ^c Lehman T., Chatterjee S., Schnable J. (1992). "The Cooper Canyon Formation (Late Triassic) of western Texas". The Texas Journal of Science. 44 (3): 349–355.CS1 maint: multiple names: authors list (link)

[1]

[2]

Cooper Canyon Formation

Contents

Vertebrate fauna[]

See also[]

References[]

Links[]