Where: Wyoming (41.3° N, 111.0° W: paleocoordinates 48.0° N, 90.8° W)

• coordinate based on political unit

When: Evanston Formation, Paleocene (66.0 - 56.0 Ma)

• 50 feet below coal

Environment/lithology: fluvial; siliciclastic sediments

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by F.H. Knowlton and A.C. Peale, August 8, 1909.

Primary reference: R. W. Brown. 1962. Paleocene flora of the Rocky Mountains and Great Plains. United States Geological Survey Professional Paper 375:1-119 [P. Wilf/J. Sessa/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 43309: authorized by Peter Wilf, entered by Jocelyn Sessa on 11.08.2004

Creative Commons license: CC BY (attribution)