Where: Sweetwater County, Wyoming (41.7° N, 109.0° W: paleocoordinates 45.6° N, 95.1° W)
• coordinate based on political unit
When: Washakie Formation, Bridgerian (50.3 - 46.2 Ma)
• said to be late Bridgerian
• member-level stratigraphic resolution
Environment/lithology: terrestrial
Primary reference: S. M. McCarroll, J. J. Flynn, and W. D. Turnbull. 1996. Biostratigraphy and magnetostratigraphy of the Bridgerian-Uintan Washakie Formation, Washakie Basin, Wyoming. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 25-39 [J. Alroy/J. Alroy/J. Marcot]more details
PaleoDB collection 16502: authorized by John Alroy, entered by John Alroy on 26.07.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
| Mammalia | |
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Herpetotherium cf. knighti McGrew et al. 1959 marsupial | |
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Hyopsodus sp. Leidy 1870 condylarth | |
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Hyrachyus eximius Leidy 1871 odd-toed ungulate bed 527: based on McCarroll et al. 1996a, this actually includes specimens reported as H. nr. modestus by Turnbull 1972
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Helaletes nanus Marsh 1871 odd-toed ungulate | |
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Orohippus sp. Marsh 1872 horse | |
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Sciuravus nitidus Marsh 1871 rodent reported as S. cf. nitidus by Turnbull 1972 and Roehler 1973; from Roehler's bed 533
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cf. Apatemys bellus Marsh 1872 eutherian | |
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