USGS locality 3728 Williston, ND, lower Fort Union Fm (Paleocene of the United States)

Where: North Dakota (48.1° N, 103.6° W: paleocoordinates 53.4° N, 80.3° W)

• coordinate based on political unit

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

• lower Fort Union

• formation-level stratigraphic resolution

Environment/lithology: fluvial; shelly/skeletal, gray, white, silty sandstone and coal

• 'grayish-white quartzitic sandstone containing a zone of silicifed wood...this bed is about 90 feet below a large coal seam.' Brown does not specify what unit the plant remains come from.

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by M.R. Campbell, 1905.

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 40145: authorized by Peter Wilf, entered by Jocelyn Sessa on 18.06.2004

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.
 Sapindales - Oxalidaceae
"Sapindus affinis" = Averrhoites affinis
"Sapindus affinis" = Averrhoites affinis Hickey 1977