USGS locality 5029, 35 miles southwest of Black Buttes, WY, upper Fort Union Fm (Paleocene of the United States)

Where: Wyoming (41.2° N, 108.8° W: paleocoordinates 47.5° N, 88.5° W)

• coordinate estimated from map

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

• upper Fort Union

• formation-level stratigraphic resolution

Environment/lithology: fluvial

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by Knowlton, Veatch, Fisher, Schultz & Stanton, July 24, 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 40937: authorized by Peter Wilf, entered by Jocelyn Sessa on 03.07.2004

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.
Show authors, comments, and common names
Polypodiopsida
 Polypodiales - Polypodiidae
Dennstaedtia americana
Dennstaedtia americana Knowlton 1910