Where: Montana (45.8° N, 110.0° W: paleocoordinates 52.2° N, 88.1° W)

• coordinate based on political unit

When: Fort Union Formation, Paleocene (66.0 - 56.0 Ma)

• Although not stated, this collection likely comes from the Fort Union Fm. From sandstone ledge near top of bluffs.

Environment/lithology: fluvial; sandstone

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Collected by R.W. Brown on July 19, 1940

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 53956: authorized by Peter Wilf, entered by Jocelyn Sessa on 19.09.2005

Creative Commons license: CC BY (attribution)