Sand Creek (Orellan/Nebraska): Orellan, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
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Peltosaurus granulosus
Cope 1873
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Gilmore 1928 | 1 specimen | ||||||||
CM 1038, anterior portion of right dentary and fragment of left | ||||||||||
Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodon nebraskensis
(Leidy 1850)
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CM specimen from "Orellan of Sand Creek, Sioux Co." | ||||||||||
Mammalia
- Merycoidodontidae
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Stenopsochoerus sternbergi
Schultz and Falkenbach 1956
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Schultz and Falkenbach 1956 | |||||||||
synonym of Miniochoerus affinis | ||||||||||
Gidley collection of 1899 | ||||||||||
Mammalia
- Entelodontidae
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Archaeotherium mortoni
Leidy 1850
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Sinclair 1922 | |||||||||
"lower Oreodon beds at the head of Sand Creek, Nebraska"; Gidley collection of 1896 | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Nebraska | County: | Sioux |
Coordinates: | 42.4° North, 103.8° West (view map) | ||||
Paleocoordinates: | 43.6° North, 95.7° West | ||||
Basis of coordinate: | based on political unit |
Time
Period: | Paleogene | Epoch: | Oligocene |
Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
*Period: | Tertiary | ||
Key time interval: | Orellan | ||
Age range of interval: | 33.90000 - 33.30000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Geological group: | White River | Formation: | Brule |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection excludes: | some genera |
Reason for describing collection: | paleoecologic analysis |
Taxonomic list comments:Brule "A" based on Schultz and Falkenbach 1956 just south of Round Top and perhaps equivalent to UNSM Sx-22 |
Metadata
Database number: | 17175 | ||
Authorizer: | J. Alroy, P. Barrett | Enterer: | J. Alroy, T. Cleary |
Modifier: | T. Cleary | Research group: | vertebrate |
Created: | 1995-10-18 00:00:00 | Last modified: | 2016-07-08 10:19:52 |
Access level: | the public | Released: | 1995-10-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
1235. | ETE 10023 | J. Clark and J. R. Beerbower. 1967. Geology, paleoecology, and paleoclimatology of the Chadron Formation. Fieldiana 5(5):21-74 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
14538 | C. W. Gilmore. 1928. Fossil lizards of North America. Memoirs of the National Academy of Sciences 22(3):1-201 [J. Head/J. Head/M. Carrano] | |
3068 | C. B. Schultz and C. H. Falkenbach. 1956. Miniochoerinae and Oreonetinae two new subfamilies of oreodonts. Bulletin of the American Museum of Natural History 109(4):373-482 [J. Alroy/J. Alroy/J. Marcot] | |
3167 | W. J. Sinclair. 1922. Entelodonts from the Big Badlands of South Dakota in the geological museum of Princeton University. Proceedings of the American Philosophical Society 60:467-495 [J. Alroy/J. Alroy/J. Alroy] |