USGS locality 2423, 40 miles north of Billings MT, Bull Mountians, Fort Union Fm (Paleocene of the United States)

Also known as USGS locality 2423, USGS locality 4984

Where: Montana (45.8° N, 108.5° W: paleocoordinates 51.9° N, 86.5° W)

• coordinate based on political unit

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

• upper Fort Union Fm

• formation-level stratigraphic resolution

Environment/lithology: fluvial; coal

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by Hayden and Peale, August 17, 1883

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 40104: authorized by Peter Wilf, entered by Jocelyn Sessa on 17.06.2004

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.
 Juglandales - Hamamelidae
 Fagales - Betulaceae