Where: Montana (45.9° N, 106.2° W: paleocoordinates 51.6° N, 84.0° W)

• coordinate estimated from map

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

• Although not stated, 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 53838: authorized by Peter Wilf, entered by Jocelyn Sessa on 14.09.2005

Creative Commons license: CC BY (attribution)