Otis Chalk Quarry 2, TMM 31099 (Dockum Formation): Carnian - Norian, Texas
collected by WPA 1939–1941
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
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Rhynchosauria indet.
(Osborn 1903)
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Spielmann et al. 2006 | 1 specimen | ||||||||
TMM 31099-11 partim, humerus | ||||||||||
Reptilia
- Parasuchidae
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Phytosauria indet.
(Jaeger 1828)
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2 specimens | |||||||||
= ? Parasuchidae indet.
Lydekker 1885
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Spielmann et al. 2006 | |||||||||
TMM 31099-11 partim, interclavicle, pelvis | ||||||||||
Reptilia
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? Aetosauria indet.
(Lydekker 1889)
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Spielmann et al. 2006 | 1 specimen | ||||||||
TMM 31099-11 partim, braincase | ||||||||||
Trilophosaurus sp.
Case 1928
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Anonymous 1940 | 140 specimens | ||||||||
= Trilophosaurus buettneri
Case 1928
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Heckert et al. 2006 | |||||||||
More than 140 NMMNH and TMM specimens, mostly postcrania. See detailed list of material in Spielmann et al. (2008: p. 155) | ||||||||||
cf. Trilophosaurus buettneri
Case 1928
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Spielmann et al. 2006 | 1 specimen | ||||||||
TMM 31099-11 partim, radius | ||||||||||
Malerisaurus langstoni n. sp.
Chatterjee 1986
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Chatterjee 1986 | 1 specimen | ||||||||
synonym of Trilophosaurus buettneri | ||||||||||
TMM 31099-11 (holotype); Spielmann et al. (2006) restricted holotype to cranial elements only | ||||||||||
Amphibia
- Temnospondyli
- Metoposauridae
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Buettneria ? bakeri
Case 1931
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Sawin 1944 | 1 specimen | ||||||||
= Buettneria perfecta
Case 1922
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Hunt 1993 | |||||||||
= Buettneria perfecta
Case 1922
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Long and Murry 1995 | |||||||||
synonym of Anaschisma browni | ||||||||||
TMM 31099-12B, skull and lower jaw, fragmentary skull with lower jaws, numerus vertebrae, two interclavicles and one right and one left clavicle | ||||||||||
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 | ||||
Altitude: | 740 meters | ||||
Geographic resolution: | small collection |
Stratigraphy
Geological group: | Dockum | Formation: | Colorado City | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: "continental red-bed sequence"; variously referred to the Iatan or Colorado City Members of the Dockum Group; low in Dockum Group. ca. 15 ft lower than site 1. |
Lithology and environment
Primary lithology: | red silty mudstone |
Secondary lithology: | lenticular conglomeratic sandstone |
Includes fossils? | Y |
Lithology description: "dominant lithology is red mudstone intercalated with lenses of fine-grained sandstones and conglomerates." | |
Environment: | crevasse splay |
Geology comments: "continental red-bed sequence accumulated in a mosaic of fluvial, lacustrine, and flood plain deposits" |
Taphonomy
Modes of preservation: | body |
Lagerst�tten type: | concentrate |
Degree of concentration: | -single event |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Articulated whole bodies: | some |
Temporal resolution: | snapshot |
Collection methods and comments
Collection excludes: | species names | ||
Collection methods: | selective quarrying,chemical,mechanical,field collection,survey of museum collection | ||
Reason for describing collection: | taphonomic analysis | ||
Museum repositories: | NMMNH,TMM | ||
Collectors: | WPA | Collection dates: | 1939–1941 |
Collection method comments: ETE Size: .; ETE reference list: 1003, 770, 673, 793, 786, 772, 794, 801, 769, 771, 828, 827, 842, 857, 715, 723, 668, 773, 751, 753, 754, 891, 758, 719, 714, 728, 755, 718, 800, 799, ; ETE museum list: |
Metadata
Also known as: | Small Reptile Quarry, ETE Locality 1580, NMMNH L-4208, Trilophosaurus Quarry 2, 5936, Work Project No.13352 | ||
Database number: | 12942 | ||
Authorizer: | J. Alroy, M. Carrano, R. Butler, B. Gee | Enterer: | R. Whatley, B. Gee, R. Butler, M. Carrano |
Modifier: | P. Mannion | Research group: | vertebrate |
Created: | 2002-01-11 15:33:04 | Last modified: | 2022-07-15 11:10:02 |
Access level: | the public | Released: | 2002-01-11 15:33:04 |
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:
71453 | Anonymous. 1940. The fourth quarterly report covering the quarter ending March 31, 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 1-29 [M. Carrano/M. Carrano] | |
71463 | Anonymous. 1940. The fifth quarterly report covering the quarter ending June 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 1-25 [M. Carrano/M. Carrano] | |
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] | |
71466 | Anonymous. 1940. The seventh quarterly report covering the quarter ending December 31, 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] | |
71467 | Anonymous. 1941. The eighth quarterly report covering the quarter ending March 31, 1941 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] | |
4290 | 5% 24260 | S. Chatterjee. 1986. Malerisaurus langstoni, a new diapsid reptile from the Triassic of Texas . Journal of Vertebrate Paleontology 6(4):297-312 [J. Alroy/R. Whatley/M. Uhen] |
5936 | ETE 1717 | 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] |
17273 | ETE | A. B. Heckert. 2004. Late Triassic microvertebrates from the lower Chinle Group (Otischalkian-Adamanian: Carnian), southwestern U.S.A. New Mexico Museum of Natural History and Science Bulletin 27:1-170 [M. Carrano/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] | |
24941 | ETE | A. B. Heckert and S. G. Lucas. 2006. Micro- and small vertebrate biostratigraphy and biochronology of the Upper Triassic Chinle Group, southwestern USA. In J. D. Harris, S. G. Lucas, J. A. Spielmann, M. G. Lockley, A. R. C. Milner, J. I. Kirkland (eds.), The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:94-104 [M. Carrano/M. Carrano/P. Wagner] |
30943 | A. P. Hunt. 1993. Revision of the Metoposauridae (Amphibia: Temnospondyli) and description of a new genus from western North America. In M. Morales (ed.), Museum of Northern Arizona Bulletin 59:67-97 [R. Butler/R. Butler/M. Uhen] | |
19338 | ETE | T. M. Lehman and S. Chatterjee. 2005. Depositional setting and vertebrate biostratigraphy of the Triassic Dockum Group of Texas. Journal of Earth Systems Science 114(3):325-351 [M. Carrano/M. Carrano] |
14122 | ETE | 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] |
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] | |
12932 | ETE | 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] |
37120 | H. J. Sawin. 1944. Amphibians from the Dockum Triassic of Howard County, Texas. Contributions to Geology, The University of Texas 4401:361-399 [M. Carrano/M. Carrano] | |
71494 | E. H. Sellards. 1941. Final report covering the period from March 4, 1939 ro September 30, 1941 for the state-wide paleontologic-mineralogic survey in Texas. A Federal Works Agency Work Projects Administration Project iii-85 [M. Carrano/M. Carrano] | |
43417 | J. A. Spielmann, S. G. Lucas, A. P. Hunt and A. B. Heckert. 2006. Reinterpretation of the holotype of Malerisaurus langstoni, a diapsid reptile from the Upper Triassic Chinle Group of New Mexico. In J. D. Harris, S. G. Lucas, J. A. Spielmann, M. G. Lockley, A. R. C. Milner, & J. I. Kirkland (eds.), The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:543-547 [R. Butler/R. Butler/M. Carrano] | |
43418 | J. A. Spielmann, S. G. Lucas, L. F. Rinehart and A. B. Heckert. 2008. The Late Triassic archosauromorph Trilophosaurus. New Mexico Museum of Natural History and Science Bulletin 43:1-177 [R. Butler/R. Butler] |