USGS locality 2422, 2 miles east of Gladstone, ND, upper Fort Union Fm (Paleocene of the United States)

Where: North Dakota (46.9° N, 102.6° W: paleocoordinates 51.9° N, 79.7° W)

• coordinate based on political unit

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

• upper Fort Union, lignite bed

• formation-level stratigraphic resolution

Environment/lithology: fluvial; coal

• lignite bed

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by A.C. Peale, September 21, 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 40103: 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.
 Cardiidia - Grammysiidae
Davidia antiqua Manchester 2002 clam
 Sapindales - Oxalidaceae
"Sapindus affinis" = Averrhoites affinis
"Sapindus affinis" = Averrhoites affinis Hickey 1977