Otis Chalk Quarry 3A (Triassic of the United States)

Also known as ETE Locality 1582, TMM Locality 31185

Where: Howard County, Texas (32.2° N, 101.3° W: paleocoordinates 6.9° N, 41.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Colorado City Formation (Dockum Group), Norian (228.0 - 208.5 Ma)

• variously referred to te Iatan or Colorado City Members of the Dockum Group

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; red mudstone

• ETE sed env 1: fluvial, ETE sed env 2: floodplain ETE event: flood, ETE env comment: crev splay
• ETE rock type adj: 0, ETE lithology comments: 0

Size class: macrofossils

Collection methods: ETE Size: .; ETE reference list: 896, 896, 900, 905, 899, 901, 915, 916, 914, 907, 894, 895, 902, 909, 913, 908, 904, 906, 898, 903, 897, 911, 910, 912, 917, 918, 920, 919, ; ETE museum list:

Primary reference: R. L. Elder. 1987. Taphonomy and paleoecology of the Dockum Group, Howard County, Texas. Journal of the Arizona-Nevada Academy of Science 22(1):85-94 [A. Behrensmeyer/A. Behrensmeyer/M. Carrano]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 22707: authorized by Anna Behrensmeyer, entered by Anna Behrensmeyer on 29.05.2001, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Temnospondyli - Metoposauridae
"Buettneria perfecta" = Koskinonodon perfectus3
"Buettneria perfecta" = Koskinonodon perfectus3 Case 1922 tetrapod
ETE number of identifiable specimens; species: Metoposauridae
Reptilia
 Eosuchia - Rhynchosauridae
Otischalkia elderae2 Hunt and Lucas 1991 rhynchosaur
ETE number of identifiable specimens; species: Rhyncosauridae
 Eosuchia -
Trilophosaurus buettneri1 Case 1928 archosauromorph
 Pseudosuchia - Stagonolepididae
Lucasuchus hunti3, "Typothorax meadei n. sp." = Longosuchus meadei4
Lucasuchus hunti3 Long and Murry 1995 archosaur
TMM 31185-65, 66
"Typothorax meadei n. sp." = Longosuchus meadei4 Sawin 1947 archosaur
TMM 31185-98, fairly complete skull (holotype). TMM 31185-97, 31185-84a, 31185-84b, 31185-84, 31185-40
 Phytosauria -
Phytosauria indet.3 Jaeger 1828 archosaur
ETE number of identifiable specimens; species: Phytosauridae
 Phytosauria - Parasuchidae
"Paleorhinus bransoni" = Parasuchus bransoni3
"Paleorhinus bransoni" = Parasuchus bransoni3 Williston 1904 archosaur
TMM 31185-11, 38