Frank Kostelecky Ranch: Orellan, North Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Carnivora
- Canidae
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Hesperocyon gregarius
(Cope 1873)
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| 12 and 15 ft above White Marker Zone; I presume this is low enough to be the local "early Orellan" | ||||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Subhyracodon occidentalis
(Leidy 1850)
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Prothero 2005 | |||||||||
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Mammalia
- Camelidae
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Poebrotherium wilsoni
Leidy 1847
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Prothero 1996 | |||||||||
| "Kostelecky Ranch, Stark Co. ... early Orellan" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | North Dakota | County: | Stark |
| Coordinates: | 46.9° North, 102.8° West (view map) | ||||
| Paleocoordinates: | 48.0° North, 94.2° 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 - 31.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:about 3 mi N of Fitterer Ranch "Hyracodon nebraskensis" Prothero 1996e: said to be late Orellan | |
Metadata
| Database number: | 17125 | ||
| Authorizer: | J. Alroy, J. Marcot | Enterer: | J. Alroy, J. Marcot |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1998-09-21 00:00:00 | Last modified: | 2006-09-13 00:34:39 |
| Access level: | the public | Released: | 1998-09-21 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6226. | X. Wang. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 221:1-207 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
| 2805 | 5% 6280 | D. R. Prothero. 1996. Camelidae. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 609-651 [J. Alroy/J. Alroy/J. Marcot] |
| 51726 | D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot] |