Where: Uintah County, Utah (40.2° N, 109.9° W: paleocoordinates 42.3° N, 100.7° W)

• coordinate based on political unit

When: Duchesne River Formation, Duchesnean (40.4 - 37.2 Ma)

Environment/lithology: terrestrial

Primary reference: O. A. Peterson. 1934. Annals of Carnegie Museum 23:373-389 [J. Alroy/J. Alroy] more details

PaleoDB collection 16852: authorized by John Alroy, entered by John Alroy on 21.09.1998

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)