List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes
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Osteichthyes indet.
Huxley 1880
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Heckert 2004 | 3 elements | ||||||||
NMMNH P-34037, 34044, 34220 | ||||||||||
unclassified
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Tetrapoda indet.
Jaekel 1911
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Heckert 2004 | 16 specimens | ||||||||
NMMNH P-34052, 34053, 34063-65, 34068, 34071-72 | ||||||||||
Reptilia
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Reptilia indet.
Laurenti 1768
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Heckert 2004 | 21 specimens | ||||||||
NMMNH P-34024-31, 34047-79, 34062, 34066, 34144-46, 34222, 34233, 41428-34 | ||||||||||
Archosauromorpha indet.
(Huene 1946)
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Heckert 2004 | 12 elements | ||||||||
NMMNH P-34020, 34050, 34054 | ||||||||||
Trilophosaurus buettneri
Case 1928
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Anonymous 1940 | |||||||||
Hundreds of specimens - see Spielmann et al. (2008, p. 153) for a complete list | ||||||||||
= Trilophosaurus sp.
Case 1928
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Anonymous 1940 | |||||||||
Malerisaurus langstoni
Chatterjee 1986
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Murry 1989 | |||||||||
synonym of Trilophosaurus buettneri | ||||||||||
? Theropoda indet.
Marsh 1881
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Heckert 2004 | 11 specimens | ||||||||
NMMNH P-34011a-d, 34012, 34057-58, 41435-36, 41439, 34069 | ||||||||||
= Archosauriformes indet.
Gauthier 1986
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Butler 2010 | |||||||||
Archosauria indet.
Cope 1869
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Elder 1987 | 8 specimens | ||||||||
= Archosauriformes indet.
Gauthier 1986
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Heckert 2004 | |||||||||
NMMNH P-34013, 34015-19, 34022, 34143 | ||||||||||
aff. Ornithischia indet.
Seeley 1888
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Heckert 2004 | 1 specimen | ||||||||
NMMNH P-34032 | ||||||||||
= Archosauriformes indet.
Gauthier 1986
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Butler 2010 | |||||||||
Ornithischia indet.
Seeley 1888
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Heckert 2004 | 3 specimens | ||||||||
NMMNH P-41437, 34033, 41438 | ||||||||||
= Archosauriformes indet.
Gauthier 1986
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Butler 2010 | |||||||||
Protecovasaurus lucasi
Heckert 2004
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Heckert 2004 | 1 specimen | ||||||||
NMMNH P-34221 | ||||||||||
Rauisuchidae indet.
Huene 1942
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Elder 1987 | 1 individual | ||||||||
TMM 31025-12 (holotype), right ilium. TMM 31025-177, 257, 259. All specimens probably represent a single individual | ||||||||||
= Lythrosuchus langstoni n. gen., n. sp.
Long and Murry 1995
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Long and Murry 1995 | |||||||||
recombined as Poposaurus langstoni | ||||||||||
? Rauisuchia indet.
Huene 1942
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Heckert 2004 | 1 specimen | ||||||||
invalid subgroup of Suchia | ||||||||||
NMMNH P-34015 | ||||||||||
Phytosauria indet.
(Jaeger 1828)
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Long and Murry 1995 | 6 specimens | ||||||||
TMM 31025-7, 9, 149, 152, 153, 180 | ||||||||||
Reptilia
- Parasuchidae
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Paleorhinus bransoni
Williston 1904
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Long and Murry 1995 | 1 specimen | ||||||||
recombined as Parasuchus bransoni | ||||||||||
TMM 31025-172, skull | ||||||||||
Phytosauridae indet.
Jaeger 1828
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Heckert 2004 | 4 specimens | ||||||||
replaced by Mystriosuchinae | ||||||||||
NMMNH P-34005, 29400, 34007-09 | ||||||||||
Reptilia
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Desmatosuchus sp.
Case 1920
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3 specimens | |||||||||
= Aetosaurus sp.
Fraas 1887
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Elder 1987 | |||||||||
= Doswellia kaltenbachi
Weems 1980
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Long and Murry 1995 | |||||||||
TMM 31025-64, 152, 153 | ||||||||||
= Doswellia sp.
Weems 1980
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Sues et al. 2013 | |||||||||
Rhynchosauridae indet.
Cope 1871
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Elder 1987 | 4 specimens | ||||||||
TMM 31025-263 (holotype), 31025-262, humeri- TMM 31025-266, 31025-264, femora | ||||||||||
= Otischalkia elderae n. gen., n. sp.
Hunt and Lucas 1991
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Hunt and Lucas 1991 | |||||||||
Reptilia
- Prolacertiformes
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Prolacertiformes indet.
Camp 1945
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Heckert 2004 | 1 specimen | ||||||||
NMMNH P-34056; also called "aff. Tanytrachelos" | ||||||||||
Amphibia
- Temnospondyli
- Almasauridae
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Latiscopus disjunctus n. gen., n. sp.
Wilson 1948
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Wilson 1948 | 1 specimen | ||||||||
nomen dubium belonging to Almasauridae | ||||||||||
UT-BEG 31025-182 | ||||||||||
Amphibia
- Temnospondyli
- Metoposauridae
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Metoposauridae indet.
Watson 1919
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Heckert 2004 | 1 specimen | ||||||||
NMMNH P-34034 | ||||||||||
Buettneria howardensis
Sawin 1944
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Sawin 1944 | 3 specimens | ||||||||
synonym of Anaschisma browni | ||||||||||
TMM 31025-6, 8, 11 | ||||||||||
Coelacanthimorpha
- Coelacanthiformes
- Coelacanthidae
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? Coelacanthidae indet.
Agassiz 1843
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Heckert 2004 | 1 element | ||||||||
NMMNH P-34045 | ||||||||||
Dipnomorpha
- Arganodontidae
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Ceratodus sp.
Agassiz 1838
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Murry 1987 | |||||||||
= ? Arganodus sp.
Martin 1979
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Heckert 2004 | |||||||||
Actinopterygii
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Actinopterygii indet.
Cope 1887
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Heckert 2004 | 4 elements | ||||||||
NMMNH P-34023, 34040, 41426, 41427 | ||||||||||
Palaeonisciformes
- Redfieldiidae
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Redfieldiidae indet.
Hutchinson 1973
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Heckert 2004 | 6 elements | ||||||||
NMMNH P-34039, 41338, 40699, 40700, 41357 | ||||||||||
Palaeonisciformes
- Palaeoniscidae
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aff. Palaeoniscidae indet.
Vogt 1852
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Heckert 2004 | 1 element | ||||||||
NMMNH P-34046 | ||||||||||
aff. Turseodus sp.
Leidy 1857
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Heckert 2004 | 1 element | ||||||||
NMMNH P-34038 | ||||||||||
Chondrichthyes
- Hybodontiformes
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Hybodontoidea indet.
Agassiz 1834
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Heckert 2004 | 1 element | ||||||||
NMMNH P-34043 | ||||||||||
? Lissodus sp.
Brough 1935
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Murry 1986 | 1 specimen | ||||||||
SMU 69650, tooth | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Texas | County: | Howard |
Coordinates: | 32.2° North, 101.2° West (view map) | ||||
Paleocoordinates: | 4.9° North, 40.0° West | ||||
Basis of coordinate: | stated in text | ||||
Altitude: | 740 meters | ||||
Geographic resolution: | small collection |
Stratigraphy
Geological group: | Dockum | Formation: | Colorado City | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: variously referred to the Iatan or Colorado City of the Dockum Group; low in formation; lower level than Quarry 1 |
Lithology and environment
Primary lithology: | concretionary,green,red,yellow,blue mudstone |
Secondary lithology: | paleosol/pedogenic calcareous mudstone |
Includes fossils? | Y |
Lithology description: "red, green, purple and yellowish smectitic mudstones with minor concretions encrusting many of the bones" "Here the vertebrate fossils occur in a 30 cm-thick red mudstone." | |
Environment: | crevasse splay |
Geology comments: "an overbank or crevasse splay deposit...[in] a floodplain environment that experienced moderate pedogenic modification" |
Taphonomy
Modes of preservation: | body |
Lagerst�tten type: | concentrate |
Degree of concentration: | -single event |
Size of fossils: | macrofossils,mesofossils |
Preservation of anatomical detail: | good |
Disassociated major elements: | many |
Disassociated minor elements: | many |
Fragmentation: | occasional |
Temporal resolution: | snapshot |
Collection methods and comments
Collection methods: | bulk,selective quarrying,surface (float),surface (in situ),mechanical,sieve,field collection | ||
Rock censused: | 4500 kg | ||
Reason for describing collection: | taphonomic analysis | ||
Museum repositories: | NMMNH,TMM | ||
Collectors: | WPA | Collection dates: | 1939–1941 |
Taxonomic list comments:1940 report: "To date the fauna has resisted all efforts at Identification, and beyond the statement that probably all the fauna is at least rare or mostly undescribed, nothing can be said." |
Metadata
Also known as: | Trilophosaurus Quarry 1, NMMNH L-860, WPA, Work Project No. 13352 | ||
Database number: | 22704 | ||
Authorizer: | A. Behrensmeyer, M. Carrano, R. Butler | Enterer: | A. Behrensmeyer, M. Carrano, R. Butler |
Modifier: | P. Mannion | Research group: | vertebrate |
Created: | 2001-05-29 01:00:00 | Last modified: | 2022-07-15 11:10:14 |
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:
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] | |
32144 | R. J. Butler. 2010. Taxonomic opinions on Archosauromorpha. [R. Butler/R. Butler/R. Butler] | |
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] |
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] |
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] | |
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] |
13249 | ETE | 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] | |
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] |
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] | |
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] | |
47029 | H.-D. Sues, J. B. Desojo, and M. D. Ezcurra. 2013. Doswelliidae: a clade of unusual armoured archosauriforms from the Middle and Late Triassic. In S. J. Nesbitt, J. B. Desojo, R. B. Irmis (eds.), Anatomy, Phylogeny and Palaeobiology of Early Archosaurs and their Kin. Geological Society, London, Special Publications 379 [R. Butler/R. Butler] | |
43403 | J. A. Wilson. 1948. A small amphibian from the Triassic of Howard County, Texas. Journal of Paleontology 22(3):359-361 [R. Butler/R. Butler] |