Phil Mass Ranch: Bridgerian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Apatemyidae
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Apatemys bellus
Marsh 1872
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West 1973 | |||||||||
= Apatemys sp.
Marsh 1872
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Alroy 2002 | |||||||||
Twin Buttes Mbr. | ||||||||||
Mammalia
- Perissodactyla
- Hyrachyidae
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Hyrachyus affinis
(Marsh 1871)
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Wood 1934 | |||||||||
synonym of Hyrachyus modestus | ||||||||||
"P. M. Ranch, H. F. (presumably Henry's Fork, and hence C or D)"; I believe "H. F." is a reference to Henry's Fork Table, i.e., Cedar Mountain | ||||||||||
Mammalia
- Homacodontidae
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Homacodon vagans
Marsh 1872
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West 1984 | |||||||||
Mammalia
- Geolabididae
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Centetodon pulcher
Marsh 1872
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Lillegraven et al. 1981 | |||||||||
Mammalia
- Rodentia
- Ischyromyidae
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Thisbemys corrugatus
Wood 1959
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Wood 1962 | |||||||||
"presumably" Twin Buttes Mbr. | ||||||||||
unclassified
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Scenopagus edenensis
(McGrew et al. 1959)
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upper Bridger | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Wyoming | County: | Sweetwater |
Coordinates: | 41.7° North, 109.0° West (view map) | ||||
Paleocoordinates: | 45.6° North, 95.1° West | ||||
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: | 50.30000 - 46.20000 m.y. ago | ||
* legacy (obsolete) database fields |
Lithology and environment
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Collection excludes: | some genera |
Taxonomic list comments:shown in map of Wheeler 1961 to be NE of Cedar Mountain and W of Twin Buttes and clearly in the Twin Buttes Mbr. based on map of West 1976a none of the references place this definitively in C or D |
Metadata
Also known as: | Ringdahl Ranch | ||
Database number: | 16283 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
Created: | 1995-03-26 00:00:00 | Last modified: | 2002-06-03 03:27:41 |
Access level: | the public | Released: | 1995-03-26 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
2170. | L. Krishtalka. 1976. Early Tertiary Adapisoricidae and Erinaceidae (Mammalia, Insectivora) of North America. Bulletin of Carnegie Museum of Natural History 1 [J. Alroy/J. Alroy/J. Ju] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
2241 | J. A. Lillegraven, M. C. McKenna, and L. Kristalka. 1981. Evolutionary relationships of middle Eocene and younger species of Centetodon (Mammalia, Insectivora, Geolabididae) with a description of the dentition of Ankylodon (Adapisoricidae). University of Wyoming Publication 45:1-115 [J. Alroy/J. Alroy/M. Uhen] | |
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] | |
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] | |
3731 | A. E. Wood. 1962. The Early Tertiary Rodents of the Family Paramyidae. Transactions of the American Philosophical Society 52(1):3-261 [J. Alroy/J. Alroy/J. Marcot] | |
3744 | H. E. Wood. 1934. Revision of the Hyrachyidae. Bulletin of the American Museum of Natural History 67(5):181-295 [J. Alroy/J. Alroy/J. Marcot] |