USGS locality 4874, about 5 miles east of Ranchester, WY, lower Fort Union Fm (Paleocene of the United States)

Where: Wyoming (44.9° N, 107.2° W: paleocoordinates 50.8° N, 85.4° W)

• coordinate based on political unit

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

• About 100 feet below Carney coal - from USGS unpublished log book.

• formation-level stratigraphic resolution

Environment/lithology: fluvial; coal

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by T.E. Williard, July 27, 1907.

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/J. Sessa]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 40829: authorized by Peter Wilf, entered by Jocelyn Sessa on 01.07.2004

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.
Magnoliopsida
 Magnoliales - Lauraceae
Sassafras thermale Brown 1962 sassafras