Where: North Dakota (46.9° N, 103.8° W)

• Paleocoordinates: 54.8° N, 67.6° W (Wright 2013)

• coordinate based on political unit

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

• Just above coal bed at base of butte

Environment/lithology: fluvial; coal

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by R.W. Brown on July 28, 1941

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 58087: authorized by Peter Wilf, entered by Jocelyn Sessa on 17.01.2006

Creative Commons license: CC0 (CC0)