Where: Wyoming (41.8° N, 106.8° W: paleocoordinates 47.8° N, 86.1° W)

• coordinate estimated from map

When: Ferris? Formation, Paleocene (66.0 - 56.0 Ma)

• This collection has no stratigraphic information; I am tentatively placing it in the Ferris Fm because it is close to Ferris localities.

Environment/lithology: fluvial; siliciclastic sediments

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by R.W. Brown and C.W. Mumm on July 28, 1938

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 57983: authorized by Peter Wilf, entered by Jocelyn Sessa on 12.01.2006

Creative Commons license: CC BY (attribution)