Where: Sweetwater County, Wyoming (41.9° N, 109.8° W: paleocoordinates 46.0° N, 95.4° W)

• coordinate based on nearby landmark

When: Bridgerian NALMA zone, Black Fork Member (Bridger Formation), Ypresian to Ypresian (56.0 - 41.3 Ma)

• Based on Joyce and Lyson 2015

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Prof. Hayden's exploration in 1870; reposited in the UNSM

Primary reference: J. Leidy. 1873. Part I. Contributions to the extinct vertebrate fauna of the western territories. In F. V. Hayden (ed.), Report of the United States Geological Survey of the Territories 1:1-358 [M. Uhen/M. Uhen/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 193357: authorized by Evangelos Vlachos, entered by Evangelos Vlachos on 14.05.2018, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)