North of Cedar Mountain: Bridgerian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Helohyidae
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Helohyus plicodon
Marsh 1872
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West 1984 | |||||||||
| Bridger B | ||||||||||
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Mammalia
- Perissodactyla
- Equidae
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Orohippus sp.
Marsh 1872
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Kitts 1957 | |||||||||
| from the "C horizon"; not clear if O. progressus, O. sylvaticus, or both are present | ||||||||||
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Mammalia
- Rodentia
- Ischyromyidae
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Thisbemys corrugatus n. sp.
Wood 1959
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McGrew et al. 1959 | |||||||||
| from north of Cedar Mountain in "Bridger C"; but from the lower Bridger according to Gazin 1976 | ||||||||||
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Mammalia
- Apatemyidae
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Apatemys bellus
Marsh 1872
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= Apatemys sp.
Marsh 1872
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Alroy 2002 | |||||||||
| "Blacks Fork Mem." north of Cedar Mountain | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Sweetwater |
| Coordinates: | 41.7° North, 109.0° West (view map) | ||||
| Paleocoordinates: | 49.0° North, 85.5° West (Wright 2013) | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Paleogene | Epoch: | Eocene |
| 10 m.y. bin: | Cenozoic 2 | ||
| *Period: | Tertiary | ||
| Key time interval: | Bridgerian | ||
| Age range of interval: | 50.5 - 46.2 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:older "Bridger C" records from 10 or more miles north of Cedar Mountain are presumably Bridger B, see Gazin 1976 and map of West 1976a | |
Metadata
| Database number: | 16294 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1995-03-26 00:00:00 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 1995-03-26 00:00:00 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 3597. | R. M. West. 1973. Review of the North American Eocene and Oligocene Apatemyidae (Mammalia, Insectivora). Special Publications, Texas Tech University Museum 3 [J. Alroy/J. Alroy] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 2089 | D. B. Kitts. 1957. A revision of the genus Orohippus (Perissodactyla, Equidae). American Museum Novitates 1864:1-40 [J. Alroy/J. Alroy/J. Marcot] | |
| 2523 | P. O. McGrew, J. E. Berman, M. K. Hecht, J. M. Hummel, G. G. Simpson and A. E. Wood. 1959. The geology and paleontology of the Elk Mountain and Tabernacle Butte area, Wyoming. Bulletin of the American Museum of Natural History 117(3):117-176 [J. Alroy/J. Alroy/R. Whatley] | |
| 3606 | R. M. West. 1984. Paleontology and Geology of the Bridger Formation, Southern Green River Basin, Southwestern Wyoming. Part 7. Survey of Bridgerian Artiodactyla, including description of a skull and partial skeleton of Antiacodon pygmaeus. Milwaukee Public Museum Contributions in Biology and Geology 56:1-47 [J. Alroy/J. Alroy/J. Marcot] |