Otis Chalk Quarry 3A: Carnian - Norian, Texas
collected by WPA 1939–1940

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Rhynchosauridae indet. Cope 1871
Elder 1987 2 specimens
ETE number of identifiable specimens; species: Rhyncosauridae
    = Otischalkia elderae Hunt and Lucas 1991
Hunt and Lucas 1991
TMM 31185-92, 31185-93, premaxillae
Reptilia - Phytosauridae
Phytosauria indet. (Jaeger 1828)
6 specimens
ETE number of identifiable specimens; species: Phytosauridae
    = Phytosauridae indet. Jaeger 1828
Elder 1987
replaced by Mystriosuchinae
TMM 31185-7, 18, 19, 20, 30, 37, 57, 69, 89, 95
Reptilia - Parasuchidae
Paleorhinus bransoni Williston 1904
Long and Murry 1995 2 specimens
recombined as Parasuchus bransoni
TMM 31185-11, 38
Reptilia
Lucasuchus hunti Long and Murry 1995
Long and Murry 1995 2 specimens
TMM 31185-65, 66
Desmatosuchus sp. Case 1920
Anonymous 1940 6 specimens
    = Typothorax meadei n. sp. Sawin 1947
Sawin 1947
recombined as Longosuchus meadei
TMM 31185-98, fairly complete skull (holotype). TMM 31185-97, 31185-84a, 31185-84b, 31185-84, 31185-40
Trilophosaurus sp. Case 1928
Elder 1987
    = Trilophosaurus buettneri Case 1928
Heckert et al. 2006
Amphibia - Temnospondyli - Metoposauridae
Buettneria sp. Case 1922
Anonymous 1940 3 specimens
    = Metoposauridae indet. Watson 1919
Elder 1987
ETE number of identifiable specimens; species: Metoposauridae
    = Buettneria perfecta Case 1922
Long and Murry 1995
synonym of Anaschisma browni
TMM 31185-24, 29, 41
see common names

Geography
Country:United States State/province:Texas County:Howard
Coordinates: 32.2° North, 101.3° West (view map)
Paleocoordinates:4.9° North, 40.0° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Triassic Epoch:Late/Upper Triassic
*International age/stage:Olenekian - Rhaetian
Key time interval:Carnian - Norian
Age range of interval:237.00000 - 208.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Dockum Formation:Colorado City
Stratigraphic resolution:bed
Stratigraphy comments: variously referred to te Iatan or Colorado City Members of the Dockum Group
Lithology and environment
Primary lithology:red mudstone
Includes fossils?Y
Lithology description: ETE rock type adj: 0, ETE lithology comments: 0
Environment:crevasse splay
Geology comments: ETE sed env 1: fluvial, ETE sed env 2: floodplain ETE event: flood, ETE env comment: crev splay
Taphonomy
Modes of preservation:body
Lagerst�tten type:concentrate
Degree of concentration:concentrated
Size of fossils:macrofossils
Temporal resolution:time-averaged
Collection methods and comments
Collection methods:field collection
Collection size:17 specimens
Reason for describing collection:taphonomic analysis
Collectors:WPA Collection dates:1939–1940
Collection method comments: 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:
Metadata
Also known as:ETE Locality 1582, TMM Locality 31185, WPA, Work Project No. 13352
Database number:22707
Authorizer:A. Behrensmeyer, R. Butler, M. Carrano Enterer:A. Behrensmeyer, R. Butler, M. Carrano
Modifier:P. Mannion Research group:taphonomy,vertebrate
Created:2001-05-29 01:00:00 Last modified:2022-07-15 11:10:25
Access level:the public Released:2001-05-29 01:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
71451. 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]

Secondary references:

71464 Anonymous. 1940. The sixth quarterly report covering the quarter ending September 30, 1940 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 1-44 [M. Carrano/M. Carrano]
14199ETE M. T. Carrano. 2025. Taxonomic opinions on the Dinosauria. [M. Carrano/M. Carrano/M. Carrano]
5936ETE 1717R. 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]
32141 A. B. Heckert, S. G. Lucas, L. F. Rinehart, J. A. Spielmann, A. P. Hunt and R. Kahle. 2006. Revision of the archosauromorph reptile Trilophosaurus, with a description of the first skull of Trilophosaurus jacobsi, from the Upper Triassic Chinle Group, West Texas, USA. Palaeontology 49(3):621-640 [R. Butler/R. Butler]
35714 A. P. Hunt and S. G. Lucas. 1991. A new rhynchosaur from the Upper Triassic of West Texas, and the biochronology of Late Triassic rhynchosaurs. Palaeontology 34(4):927-938 [R. Butler/R. Butler]
14122ETE R. A. Long and P. A. Murry. 1995. Late Triassic (Carnian and Norian) Tetrapods from the Southwestern United States. New Mexico Museum of Natural History and Science Bulletin 4:1-254 [M. Carrano/M. Carrano/P. Wagner]
13249ETE P. A. Murry. 1986. Vertebrate paleontology of the Dockum Group, western Texas and eastern New Mexico. In K. Padian (ed.), The Beginning of the Age of Dinosaurs: Faunal Change Across the Triassic–Jurassic Boundary. Cambridge University Press, Cambridge 109-137 [M. Carrano/M. Carrano/M. Carrano]
78626 P. A. Murry. 1987. Notes on the stratigraphy and paleontology of the Upper Triassic Dockum Group. Journal of the Arizona-Nevada Academy of Science 22:7-84 [M. Carrano/M. Carrano]
12932ETE P. A. Murry. 1989. Geology and paleontology of the Dockum Formation (Upper Triassic), west Texas and eastern New Mexico. In S. G. Lucas and A. P. Hunt (eds.), Dawn of the Age of Dinosaurs in the American Southwest, New Mexico Museum of Natural History, Albuquerque 102-144 [M. Carrano/M. Carrano/M. Carrano]
58720 P. A. Murry and R. A. Long. 1997. Dockum Group. In P. J. Currie & K. Padian (ed.), Encyclopedia of Dinosaurs 191-193 [M. Carrano/M. Carrano]
43405 H. J. Sawin. 1947. The pseudosuchian reptile Typothorax meadei. Journal of Paleontology 21:201-238 [R. Butler/R. Butler]