Where: Montana (46.4° N, 107.8° W: paleocoordinates 52.4° N, 85.5° W)
• coordinate estimated from map
When: Somber beds Member (Fort Union Formation), Paleocene (66.0 - 56.0 Ma)
• at the top of Somber beds - from USGS unpublished log book.
Environment/lithology: fluvial; siliciclastic sediments
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Specimens were collected by C.F. Lupton, August 10, 1909.
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 43403: authorized by Peter Wilf, entered by Jocelyn Sessa on 13.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Angiospermae | |
Zelkova planeroides zelkova |