Niobrara River (Sheridan County): Barstovian - Clarendonian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Carnivora
- Canidae
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Aelurodon ferox
Leidy 1858
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| "NE1/4 of Se of sect. 20, T29N, R45W"; this is a few miles to the east of Paleo Quarry | ||||||||||
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Mammalia
- Perissodactyla
- Equidae
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Protohippus simus
Gidley 1906
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Gidley 1906 | |||||||||
| synonym of Protohippus supremus | ||||||||||
| AMNH 10871, "from the Niobrara River locality" | ||||||||||
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Reptilia
- Testudines
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Toxochelys latiremis n. gen., n. sp.
Cope 1873
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Cope 1873 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nebraska | County: | Sheridan |
| Coordinates: | 42.7° North, 102.5° West (view map) | ||||
| Paleocoordinates: | 43.2° North, 99.7° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Neogene | Epoch: | Miocene |
| *Period: | Tertiary | ||
| Key time interval: | Barstovian - Clarendonian | ||
| Age range of interval: | 16.30000 - 9.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Ogallala | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Wang et al. (1999) considers the Niobrara River localities to be Barstovian - Clarendonian in age | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 18282 | ||
| Authorizer: | J. Alroy, E. Vlachos, J. Marcot | Enterer: | J. Alroy, J. Marcot, E. Vlachos |
| Modifier: | B. Allen | Research group: | vertebrate |
| Created: | 2002-05-15 00:00:00 | Last modified: | 2023-07-29 08:09:47 |
| Access level: | the public | Released: | 2002-05-15 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 3558. | X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
| 64476 | E. D. Cope. 1873. [Description of] Toxochelys latiremis. Proceedings of the Academy of Natural Sciences of Philadelphia 1873:10-10 [E. Vlachos/E. Vlachos/E. Vlachos] | |
| 58688 | J. W. Gidley. 1906. New or little known mammals from the Miocene of South Dakota. American Museum expedition of 1903. Part IV. Equidae. Bulletin of the American Museum of Natural History 22(8):135-153 [J. Marcot/J. Marcot] |