Where: Harding County, South Dakota (45.6° N, 103.2° W)

• Paleocoordinates: 53.4° N, 67.8° W (Wright 2013)

• coordinate estimated from map

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

• Just below White River

Environment/lithology: fluvial

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by E.M. Parks and party on Sept. 6, 1911

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 58009: authorized by Peter Wilf, entered by Jocelyn Sessa on 16.01.2006

Creative Commons license: CC0 (CC0)