USGS locality 4005, Iron Bluff, near Glendive, MT, lower Fort Union Fm (Paleocene of the United States)

Where: Montana (47.1° N, 104.7° W: paleocoordinates 52.5° N, 81.9° W)

• coordinate based on political unit

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

• 'From first coal bed about 400 ft. above Pierre Shale.' From USGS unpublished log book. 'lower Fort Union, about 50+ feet thick ' From Brown.

• formation-level stratigraphic resolution

Environment/lithology: fluvial; shale and carbonaceous sandstone

• 'light colored shale and sandstone, coal, plants.' From Brown.

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by Campbell, Leonard, Holgate & Clark, July 31, 1906.

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 40275: authorized by Peter Wilf, entered by Jocelyn Sessa on 21.06.2004

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.