USGS locality 8520, Above Rosebud coal in Colstrip operation (Foley Brothers) (Paleocene of the United States)

Where: Montana (45.9° N, 106.6° W: paleocoordinates 51.7° N, 84.5° W)

• coordinate based on political unit

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

• although not specified, this collection likely comes from the Fort Union Fm

Environment/lithology: fluvial; siliciclastic sediments

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Collected by R. W. Brown and F. S. MacNeill on Aug. 20, 1936

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 53693: authorized by Peter Wilf, entered by Jocelyn Sessa on 13.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Species lists for Brown 1962 were compiled from the publication and provided for the Paleobiology Database by Drs. Steven R. Manchester and Peter R. Crane.
Angiospermae
 Rosales - Ulmaceae
Celtis aspera Manchester 2014 hackberry