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 below first massive sandstone, mapped as base of Fort Union - from USGS unpublished log book.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/J. Sessa]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)