USGS locality 8222, At first of Blue Buttes, south of Keene, Fort Union Fm (Paleocene of the United States)
Where: Powell County, North Dakota (46.6° N, 112.5° W: paleocoordinates 53.3° N, 90.7° W)
• coordinate based on political unit
When: Fort Union Formation, Paleocene (66.0 - 56.0 Ma)
Environment/lithology: fluvial; shale
• clinker
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Specimens were collected by R. W. Brown, J. Murata on June 25, 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 58036: authorized by Peter Wilf, entered by Jocelyn Sessa on 16.01.2006
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
Angiospermae | |
"Carya antiquorum" = Hicoria antiquora
"Carya antiquorum" = Hicoria antiquora Newberry 1868 | |
Celtis aspera Manchester 2014 hackberry | |
Thuja interrupta Newberry 1868 cypress | |
Polypodiopsida | |
Dennstaedtia americana Knowlton 1910 |