Where: North Dakota (46.9° N, 103.5° W: paleocoordinates 52.1° N, 80.7° W)

• coordinate based on political unit

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

• formation-level stratigraphic resolution

Environment/lithology: fluvial; coal

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by Knowlton & Peale, July 11, 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 40426: authorized by Peter Wilf, entered by Jocelyn Sessa on 23.06.2004

Creative Commons license: CC BY (attribution)