USGS locality 9056, from shale, about 17 miles southwest of Musselshell (Paleocene of the United States)

Where: Montana (46.5° N, 108.1° W: paleocoordinates 52.5° N, 85.8° W)

• coordinate based on political unit

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

Environment/lithology: fluvial; shale

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Collected by R. W. Brown and Herbert Hadley on Sep. 4, 1944

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 53960: authorized by Peter Wilf, entered by Jocelyn Sessa on 19.09.2005

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
 Saxifragales - Cercidiphyllaceae