Beaver Divide Locality 3 (Eocene of the United States)
Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 44.8° N, 99.5° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: upper Member (White River Formation), Chadronian (37.2 - 33.9 Ma)
Environment/lithology: terrestrial
Primary reference: F. B. Van Houten. 1964. Tertiary geology of the Beaver Rim area, Fremont and Natrona Counties, Wyoming. United States Geological Survey Bulletin 1164:1-99 [J. Alroy/J. Alroy/J. Ju]more details
PaleoDB collection 16901: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
• this is probably the closest White Rive Fm. locality to the date of 32.2 (= 33.04) +/- 2.0 Ma given by Emry et al. 1987, but the sections are still at least six miles apart, and the date is from the 300' level whereas all the fossil localities are from between 50' and 250'; I therefore consider the date unreliable as a calibration point
Show authors, comments, and common names
| Mammalia | |
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? Ischyromys sp. Leidy 1856 rodent | |
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Poebrotherium sp. Leidy 1847 camel | |