USGS locality 8654, 7.4 miles east of Point of Rocks, Fort Union Fm (Paleocene of the United States)

Where: Wyoming (42.2° N, 106.4° W: paleocoordinates 48.1° N, 85.5° W)

• coordinate based on political unit

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

• Fort Union, about 150 feet above base

Environment/lithology: fluvial; siliciclastic sediments

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by R.W. Brown and C.W. Mumm on July 8, 1938

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 57977: authorized by Peter Wilf, entered by Jocelyn Sessa on 12.01.2006

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.
Angiospermae
 Trochodendrales - Trochodendraceae
Nordenskioldia borealis Heer 1870
seed
 Oxalidales - Oxalidaceae
"Sapindus affinis" = Averrhoites affinis
"Sapindus affinis" = Averrhoites affinis Newberry 1868 wood sorrel
 Rosales - Ulmaceae
Celtis aspera Manchester 2014 hackberry