USGS locality 5388 Rolstons ranch Fort Peck Indian Reservation, MT Fort Union Fm (Paleocene of the United States)

Where: Montana (48.2° N, 104.9° W)

• Paleocoordinates: 56.2° N, 68.0° W (Wright 2013)

• coordinate based on political unit

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

• lower Fort Union

Environment/lithology: fluvial; siliciclastic sediments

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by C.D. Smith, 1908.

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 43252: authorized by Peter Wilf, entered by Jocelyn Sessa on 11.08.2004

Creative Commons license: CC0 (CC0)

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
 Garryales - Eucommiaceae
 Cornales - Nyssaceae