Where: Billings County, North Dakota (47.0° N, 103.0° W: paleocoordinates 52.1° N, 80.1° W)
• coordinate based on political unit
When: Ludlow Member (Fort Union Formation), Paleocene (66.0 - 56.0 Ma)
• Ludlow Lignitic member of the Lance
Environment/lithology: fluvial; coal
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Specimens were collected by T. W. Stanton, R. W. Brown, J. Murata on July 30, 1931
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 58086: authorized by Peter Wilf, entered by Jocelyn Sessa on 17.01.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Polypodiopsida | |
| |
Angiospermae | |
Ampelopsis acerifolia Newberry 1868 | |
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Metasequoia occidentalis Chaney 1951 dawn redwood |