Keefer Collection 3 (Eocene of the United States)
Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 48.0° N, 91.4° W)
• coordinate based on political unit
When: Middle Variegated Sequence Formation, Wasatchian (55.8 - 50.3 Ma)
Environment/lithology: terrestrial
Primary reference: W. R. Keefer. 1957. Geology of the Du Noir area, Fremont County, Wyoming. United States Geological Survey Professional Paper 294-E:155-221 [J. Alroy/J. Alroy/J. Ju]more details
PaleoDB collection 15957: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
• SE 1/4 sec 5 T 42N R 107W
Show authors, comments, and common names
| Mammalia | |
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Lambdotherium cf. popoagicum Cope 1880 brontothere | |
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Hyracotherium cf. vasacciense Cope 1872 odd-toed ungulate | |