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

Also known as ETE Locality 1582, TMM Locality 31185, WPA, Work Project No. 13352

Where: Howard County, Texas (32.2° N, 101.3° W: paleocoordinates 4.9° N, 40.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Colorado City Formation (Dockum Group), Carnian to Carnian (237.0 - 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

Collected by WPA in 1939–1940

• 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: Anonymous. 1939. The third quarterly report covering the quarter ending December 31,1939 for the state-wide paleontologic-mineralogic survey in Texas. A Federal Works Agency Work Projects Administration Project. O.P. No. 665-66-3-233. State Serial No. 300-88 1-47 [M. Carrano/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 and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Temnospondyli - Metoposauridae
"Buettneria perfecta" = Anaschisma browni4
"Buettneria perfecta" = Anaschisma browni4 Branson 1905 tetrapod
Reptilia
 Diapsida -
Trilophosaurus buettneri2 Case 1928 archosauromorph
 Rhynchosauria - Rhynchosauridae
Otischalkia elderae3 Hunt and Lucas 1991 rhynchosaur
ETE number of identifiable specimens; species: Rhyncosauridae
 Phytosauria - Parasuchidae
"Phytosauridae indet." = Mystriosuchinae1, "Paleorhinus bransoni" = Parasuchus bransoni4
"Phytosauridae indet." = Mystriosuchinae1 von Huene 1915 archosaur
ETE number of identifiable specimens; species: Phytosauridae
"Paleorhinus bransoni" = Parasuchus bransoni4 Williston 1904 archosaur
TMM 31185-11, 38
 Pseudosuchia - Stagonolepididae
"Typothorax meadei n. sp." = Longosuchus meadei5, Lucasuchus hunti4
"Typothorax meadei n. sp." = Longosuchus meadei5 Sawin 1947 aetosaur
Lucasuchus hunti4 Long and Murry 1995 aetosaur
TMM 31185-65, 66