USGS locality 5721, Sunset Mine, Powder River coal field (Paleocene of the United States)
Where: Wyoming (43.1° N, 107.0° W: paleocoordinates 49.0° N, 85.9° W)
• coordinate based on political unit
When: Fort Union Formation, Paleocene (66.0 - 56.0 Ma)
Environment/lithology: fluvial; white sandstone
• White sandstone about 40 feet above coal bed - from USGS unpublished logbook.
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Collected by F. H. Knowlton on Aug. 20, 1910.
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 52869: authorized by Peter Wilf, entered by Jocelyn Sessa on 24.08.2005
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.
Show authors, comments, and common names
| Ginkgoopsida | |
|
Ginkgo adiantoides Unger 1845 ginkgo | |