Tecovas Formation

Geology

Group: Dockum

Members: unnamed (17)

Lithologies: not reported (7), "siliciclastic" (1), claystone (6), mudstone (1), siltstone (2), conglomerate (1)

Paleoenvironments: terrestrial indet. (10), delta plain (1), fluvial indet. (2), channel lag (1), fine channel fill (1), crevasse splay (2)

Age range: base of the Carnian to the top of the Norian or 237.00000 to 208.50000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Carnian237.0 - 228.0USA (Texas) (45441 79374 84271)
Carnian - Norian237.0 - 208.5USA (Texas) (71976 71977 71978 71979 71980 71982 71983 85485 98596 105766 105769 135653 135656 135662)
Norian228.0 - 208.5USA (Texas) (13266 48424 84269 94493)