Opal (UW 12-67): Bridgerian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
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Peratherium knighti
McGrew et al. 1959
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1 specimen | |||||||||
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= Herpetotherium knighti
McGrew et al. 1959
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Krishtalka and Stucky 1983 | |||||||||
| "Peratherium sp." | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Lincoln |
| Coordinates: | 41.8° North, 110.3° West (view map) | ||||
| Paleocoordinates: | 45.8° North, 96.5° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
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
| Primary lithology: | tuff |
| Lithology description: white tuff bed... typically varies between 3 to 8 feet in thickness... very fine-grained and highly altered and in places interbedded in the tuff are laminated siltstones | |
| Environment: | fluvial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection size: | 1 specimens |
| Museum repositories: | UW |
Metadata
| Database number: | 16365 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1999-09-21 00:00:00 | Last modified: | 2004-03-09 13:19:53 |
| Access level: | the public | Released: | 1999-09-21 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 2526. | 5% 39140 | P. O. McGrew and R. Sullivan. 1971. The stratigraphy and paleontology of Bridger A. Contributions to Geology, University of Wyoming 9(2):66-85 [J. Alroy/J. Alroy/J. Marcot] |
Secondary references:
| 2180 | L. Krishtalka and R. K. Stucky. 1983. Revision of the Wind River faunas, early Eocene of central Wyoming. Part 3. Marsupialia. Annals of Carnegie Museum 52(9):205-227 [J. Alroy/J. Alroy/J. Alroy] |