Wichita Group

Geology

Formations: unnamed (5), Admiral (8), Archer City (7), Belle Plains (28), Clyde (22), Lueders (11), Moran (3), Nocona (6), Petrolia (7), Petrolia/Waggoner Ranch (1), Putnam (3), Waggoner Ranch (10)

Lithologies: not reported (75), "siliciclastic" (2), claystone (16), mudstone (4), "shale" (13), sandstone (2), conglomerate (3), grainstone (1), "limestone" (15)

Paleoenvironments: marine indet. (52), terrestrial indet. (51), shallow subtidal indet. (1), lagoonal/restricted shallow subtidal (1), "channel" (1), "floodplain" (2), fluvial-lacustrine indet. (1), lacustrine indet. (2)

Age range: base of the Asselian to the top of the Kungurian or 298.90000 to 274.40000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Asselian298.9 - 293.52USA (Texas) (132661 79163 132657 173721 207494)
Asselian - Sakmarian298.9 - 290.1USA (Texas) (11165 22667 113555 180393)
Wolfcampian298.9 - 286.0USA (Texas) (13048 22635 22719 79162 84715 176442 180957 180978 211422)
Autunian298.9 - 283.3USA (Texas) (124982)
Asselian - Kungurian298.9 - 274.4USA (Texas) (11164 137131)
Wolfcampian - Leonardian298.9 - 274.4USA (Texas) (236642)
Sakmarian293.52 - 290.1USA (Texas) (28119 132443)
Artinskian290.1 - 283.3USA (Texas) (13044 13080 28141 28142 28143 28144 28145 28146 28147 28148 28149 28150 28238 28239 28240 80741 84716 85112 111540 123968 132402 132403 132404 132405 132406 132407 132408 132409 132410 132411 132412 132413 132414 132417 132418 132419 132420 132421 132422 132423 132424 132425 132426 132427 132428 132429 132430 132431 132432 132433 132434 132435 132436 132437 132438 132439 132440 132441 132442 132655 132659 132662 132663 132665 181054)
Artinskian - Kungurian290.1 - 274.4USA (Texas) (28241 28242 28249 28250 28253 85299 85300 85301 85341 85950 119428 121196)
Leonardian286.0 - 274.4USA (Texas) (24195 24199 79813 80690)
Kungurian283.3 - 274.4USA (Texas) (28251 132394 132395 132396 132397 132398 132399 132400 132401)