Where: Montana (46.2° N, 108.4° W: paleocoordinates 52.2° N, 86.3° W)

• coordinate estimated from map

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

• Greenish shale 1 to 4 ft. below first massive sandstone, mapped as base of Fort Union - from USGS unpublished log book.

• formation-level stratigraphic resolution

Environment/lithology: fluvial; shale

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by T.W. Stanton & R.W. Richards, July 5, 1908 and R. W. Brown, F. S. MacNeill Aug. 25, 1936.

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 40935: authorized by Peter Wilf, entered by Jocelyn Sessa on 03.07.2004

Creative Commons license: CC BY (attribution)