USGS locality 4256, northwest of Coleharbor, ND, upper Fort Union Fm (Paleocene of the United States)

Where: McLean County, North Dakota (47.6° N, 101.2° W: paleocoordinates 52.4° N, 77.9° W)

• coordinate based on political unit

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

• upper Fort Union

• formation-level stratigraphic resolution

Environment/lithology: fluvial; sandstone

• 'Sandstone layer immediately overlying sands containing No. 7.' From USGS unpublished log book. I do not know what number 7 is.

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by Knowlton and Peale, June 29, 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 40389: authorized by Peter Wilf, entered by Jocelyn Sessa on 22.06.2004

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.
 Saxifragales - Cercidiphyllaceae