Trinity Group

Geology

Formations: unnamed (4), Antlers (14), Cuchillo (5), Dierks (1), Glen Rose Limestone (101), Glen Rose Limestone/Paluxy (1), Hensell Sand (1), Holly Creek (2), Paluxy (32), Travis Peak (5), Twin Mountains (9)

Lithologies: not reported (46), "siliciclastic" (2), claystone (10), mudstone (32), "shale" (3), siltstone (2), sandstone (30), conglomerate (1), marl (5), lime mudstone (29), travertine (1), wackestone (10), packstone (7), grainstone (6), "limestone" (44), dolomite (1)

Paleoenvironments: marine indet. (64), terrestrial indet. (36), carbonate indet. (7), peritidal (5), shallow subtidal indet. (13), open shallow subtidal (7), lagoonal/restricted shallow subtidal (5), reef, buildup or bioherm (5), perireef or subreef (2), marginal marine indet. (7), coastal indet. (4), estuary/bay (1), lagoonal (8), deltaic indet. (3), fluvial indet. (1), coarse channel fill (2), fine channel fill (1), "channel" (1), "floodplain" (2), crevasse splay (1)

Age range: base of the Early/Lower Aptian to the top of the Early/Lower Albian or 121.40000 to 110.10000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Cretaceous143.1 - 100.5USA (Arkansas) (52041)
Early/Lower Cretaceous143.1 - 100.5USA (Texas) (52042)
Early/Lower Aptian121.4 - 119.57USA (Arkansas) (181258)
Aptian121.4 - 113.2USA (Texas) (52038 52044 99154)
Aptian121.4 - 113.2USA (Oklahoma) (25147 25148 25149)
Aptian - Albian121.4 - 100.5USA (Oklahoma) (24178 223864 223865 223866)
Aptian - Albian121.4 - 100.5USA (Arkansas) (125176)
Late/Upper Aptian119.57 - 113.2USA (Texas) (14408 22713 51709 52039 52040 52445 52448 52865 52895 84439 84447 84448 84449 84450)
Late/Upper Aptian - Early/Lower Albian119.57 - 110.1USA (Oklahoma) (11932 14374 14392 199750)
Late/Upper Aptian - Early/Lower Albian119.57 - 110.1USA (Texas) (14375 14388 52968)
Early/Lower Albian113.2 - 110.1USA (Texas) (11293 11294 11295 11296 11298 27603 27774 31172 31282 51421 52046 52136 52144 52145 52146 52148 52149 52150 52250 52251 52253 52324 52325 52326 52327 52334 52335 52336 52337 52338 52339 52340 52341 52342 52438 52439 52440 52441 52443 52444 52452 52454 52488 52532 52535 52537 52538 52540 52542 52544 52545 52547 52548 52549 52553 52555 52578 52583 52585 52855 52908 52952 53012 53013 53020 55760 57207 57208 57209 57674 57675 57676 57677 57678 57679 57680 57681 66666 74762 74763 74764 74765 74767 82421 82423 84273 84445 84737 84743 84745 84749 98329 99156 122912 137532 142357 152497 180948 180949 199751 203431 203435 213723 216561 223867 235829 235833 235834 239821)
Albian113.2 - 100.5USA (Texas) (14390 14391 14420 27604 27606 52043 52045 52142 52442 52453 52524 74766 99142 99143 99144 99145 99147 99148 99149 99150 99151 99152 99153 99155 99157 99158 235729 241011 241012)
Albian113.2 - 100.5USA (Arkansas) (55531 222851)