Where: Montana (45.9° N, 106.8° W: paleocoordinates 51.7° N, 84.7° W)
• coordinate estimated from map
When: Sentinel Butte Member (Fort Union Formation), Paleocene (66.0 - 56.0 Ma)
• Lower part of Sentinel Butte Shale member of Fort Union Fm
Environment/lithology: fluvial; shale
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Specimens were collected by C.E. Dobbin in 1923
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 53528: authorized by Peter Wilf, entered by Jocelyn Sessa on 11.09.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Phyllites | |
Angiospermae | |
Ampelopsis acerifolia Newberry 1868 |