Where: Park County, Wyoming (44.3° N, 109.0° W: paleocoordinates 49.2° N, 91.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Reposited in the UMMP

Primary reference: J. G. M. Thewissen and P. D. Gingerich. 1989. Journal of Vertebrate Paleontology 9(4) [J. Alroy/J. Alroy] more details

PaleoDB collection 15796: authorized by John Alroy, entered by John Alroy on 27.09.1993

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