USGS localities 7547 and 7548, 14 miles northeast of Big Timber; elevation 4700 (Paleocene of the United States)
Where: Sweetgrass County, Montana (46.0° N, 109.7° W: paleocoordinates 52.3° N, 87.8° W)
• coordinate estimated from map
When: Fort Union Formation, Paleocene (66.0 - 56.0 Ma)
Environment/lithology: fluvial; siliciclastic sediments
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Specimens were collected by Herman H. Graff in 1922
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 55859: authorized by Peter Wilf, entered by Jocelyn Sessa on 06.11.2005
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
| unclassified | |
|
Taxodium olriki cypress
Fokienia catenulata Fujian cypress | |
| Angiospermae | |
|
Cercidiphyllum arcticum katsura | |