Ojo Huelos Spring, NMMNH L-354: Late/Upper Triassic, New Mexico
collected by S. Lucas, K. Kietzke, A. Heckert
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Spirorbidae indet.
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Heckert 2004 | 1 specimen | ||||||||
NMMNH P-31603 | ||||||||||
Osteichthyes
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Osteichthyes indet.
Huxley 1880
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Heckert 2004 | 6 specimens | ||||||||
NMMNH P-31608, 31611, 31614, 31621, 31632, 31638 | ||||||||||
Reptilia
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Reptilia indet.
Laurenti 1768
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Heckert 2004 | 1 specimen | ||||||||
NMMNH P-31613 | ||||||||||
Reptilia
- Parasuchidae
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Phytosauridae indet.
Jaeger 1828
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replaced by Mystriosuchinae | ||||||||||
Amphibia
- Temnospondyli
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Metoposauridae indet.
Watson 1919
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2 specimens | |||||||||
NMMNH P-31612 | ||||||||||
= Temnospondyli indet.
von Zittel 1887
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Heckert 2004 | |||||||||
Actinopterygii
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Actinopterygii informal indet. 1
Cope 1887
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Heckert 2004 | 18 specimens | ||||||||
NMMNH P-31604, 31641-43 | ||||||||||
Actinopterygii informal indet. 2
Cope 1887
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Heckert 2004 | 16 specimens | ||||||||
NMMNH P-31605, 31644-45 | ||||||||||
Actinopterygii informal indet. 3
Cope 1887
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Heckert 2004 | 13 specimens | ||||||||
NMMNH P-31606, 31614, 31628, 31646-48 | ||||||||||
Actinopterygii indet.
Cope 1887
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Heckert 2004 | 6 specimens | ||||||||
NMMNH P-31616, 31619, 31629-30 | ||||||||||
Actinopteri
- Semionotiformes
- Semionotidae
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Semionotidae indet.
Woodward 1890
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Heckert 2004 | 2 specimens | ||||||||
NMMNH P-31610, 31631 | ||||||||||
Palaeonisciformes
- Redfieldiidae
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Redfieldiidae indet.
Hutchinson 1973
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Heckert 2004 | 1 specimen | ||||||||
NMMNH P-31609 | ||||||||||
Chondrichthyes
- Hybodontiformes
- Lonchidiidae
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Lonchidion cf. humblei
Murry 1981
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14 specimens | |||||||||
NMMNH P-31607, 31620, 31633-36, 31639-40, 42049 | ||||||||||
= Lonchidion humblei
Murry 1981
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Heckert 2004 | |||||||||
Ostracoda
- Podocopida
- Darwinulidae
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Darwinula sp.
Brady and Robertson 1885
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4 specimens | |||||||||
NMMNH P-31601, 31618, 31626-27 | ||||||||||
Ostracoda
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? Gerdalia triassica
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1 specimen | |||||||||
NMMNH P-31602 | ||||||||||
see common names |
Geography
Country: | United States | State/province: | New Mexico | County: | Valencia |
Coordinates: | 34.6° North, 106.8° West (view map) | ||||
Paleocoordinates: | 9.6° North, 45.8° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | small collection |
Time
Period: | Triassic | Epoch: | Late/Upper Triassic |
10 m.y. bin: | Triassic 3-4 | ||
Key time interval: | Late/Upper Triassic | ||
Age range of interval: | 237.00000 - 201.40000 m.y. ago |
Stratigraphy
Geological group: | Chinle | Formation: | San Pedro Arroyo | Member: | Ojo Huelos |
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: three separate beds; given as late Carnian (Adamanian LVF) but is correlated with the Bluewater Creek Member of Arizona, suggesting that it might be Norian in age. |
Lithology and environment
Primary lithology: | gray,yellow sandy mudstone |
Secondary lithology: | gray,yellow "limestone" |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: "The fossiliferous horizons are, in ascending order, a mottled, dark yellowish-orange to yellowish-brown pisolitic limestone (A), a yellowish-gray sandy mudstone with thin limestone ledges (B), and a dusky yellow to light gray pisolitic limestone (C)." | |
Environment: | lacustrine indet. |
Geology comments: "clastic sediment-starved lacustrine deposits" with no evidence of pedogenesis |
Taphonomy
Modes of preservation: | body |
Lagerst�tten type: | concentrate |
Degree of concentration: | concentrated |
Size of fossils: | macrofossils,mesofossils,microfossils |
Preservation of anatomical detail: | good |
Disassociated major elements: | some |
Disassociated minor elements: | some |
Fragmentation: | occasional |
Collection methods and comments
Collection methods: | bulk,sieve,field collection,survey of museum collection |
Rock censused: | 250 kg |
Reason for describing collection: | general faunal/floral analysis |
Museum repositories: | NMMNH |
Collectors: | S. Lucas, K. Kietzke, A. Heckert |
Metadata
Also known as: | Hubble Bench | ||
Database number: | 80913 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2008-05-20 09:02:22 | Last modified: | 2018-04-23 17:06:41 |
Access level: | the public | Released: | 2008-05-20 09:02:22 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
28078. | ETE | A. P. Hunt and S. G. Lucas. 1993. Late Triassic microvertebrate localities in New Mexico (USA): implications for paleoecology. In S. G. Lucas and M. Morales (eds.), The Nonmarine Triassic. New Mexico Museum of Natural History and Science Bulletin 3:187-191 [M. Carrano/M. Carrano] |
Secondary references:
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] |
31700 | A. B. Heckert and S. G. Lucas. 2002. The microfauna of the Upper Triassic Ojo Huelos Member, San Pedro Arroyo Formation, central New Mexico. In A. B. Heckert, S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology, New Mexico Museum of Natural History and Science Bulletin 21:77-85 [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] |