Bird Quarry: Wasatchian - Bridgerian, Wyoming
collected by P. O. McGrew
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia
- Temnospondyli
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Caudata indet.
Scopoli 1777
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?Ambystomichnus tracks | ||||||||||
Mammalia
- Rodentia
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Rodentia indet.
Bowdich 1821
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Mammalia
- Primates
- Notharctidae
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Notharctus sp.
Leidy 1870
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Mammalia
- Perissodactyla
- Brontotheriidae
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Palaeosyops sp.
Leidy 1870
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Mammalia
- Phenacodontidae
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Phenacodus sp.
Cope 1873
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Mammalia
- Condylarthra
- Hyopsodontidae
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Hyopsodus sp.
Leidy 1870
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Reptilia
- Testudines
- Geoemydidae
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Echmatemys sp.
Hay 1906
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Reptilia
- Testudines
- Trionychidae
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Trionychidae indet.
Gray 1825
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Reptilia
- Squamata
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Squamata indet.
Oppel 1811
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Reptilia
- Crocodylia
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Crocodylia indet.
(Owen 1842)
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Reptilia
- Anseriformes
- Presbyornithidae
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Presbyornis sp.
Wetmore 1926
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Actinopterygii
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Actinopterygii indet.
Cope 1887
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus sp.
Agassiz 1843
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see common names |
Geography
Country: | United States | State/province: | Wyoming | County: | Sweetwater |
Coordinates: | 42.1° North, 109.1° West (view map) | ||||
Paleocoordinates: | 46.6° North, 93.6° West | ||||
Basis of coordinate: | estimated from map | ||||
Geographic resolution: | small collection |
Time
Period: | Paleogene | Epoch: | Eocene |
10 m.y. bin: | Cenozoic 2 | ||
*Period: | Tertiary | *Local age/stage: | Wasatchian - Bridgerian |
Key time interval: | Wasatchian - Bridgerian | ||
Age range of interval: | 55.80000 - 46.20000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Wasatch | Member: | Cathedral Bluffs Tongue | ||
Local section: | GRBsn | Local bed: | 3 | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: said to be Wasatchian to Bridgerian "approximately 30 m below the top of the Cathedral Bluffs Tongue" |
Lithology and environment
Primary lithology: | gray,green silty mudstone |
Lithology description: "gray-green silty mudstone"; "drowned algae-encrusted root systems of trees" are present | |
Environment: | lacustrine - large |
Geology comments: quarry "appears to represent a muddy area on the forested shores of Lake Gosiute... that may have occasionally been flooded" |
Taphonomy
Modes of preservation: | body,adpression,trace |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | selective quarrying |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | UW |
Collectors: | P. O. McGrew |
Collection method comments: discovered by F. Simnacher in 1970; specimens in the University of Wyoming collection | |
Taxonomic list comments:from about 30 m below the top of the unit |
Metadata
Also known as: | UW V-58006 | ||
Database number: | 16134 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 2002-05-15 00:00:00 | Last modified: | 2007-08-02 15:04:36 |
Access level: | the public | Released: | 2002-05-15 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
4172. | J. R. Foster. 2001. Salamander tracks (Ambystomichnus?) from the Cathedral Bluffs Tongue of the Wasatch Formation (Eocene), northeastern Green River Basin, Wyoming. Journal of Paleontology 75(4):901-904 [J. Alroy/J. Alroy/J. Alroy] |