USGS locality 8913, Sentinel Butte, lower Fort Union Fm Sentinel Butte Mb (Paleocene of the United States)

Where: North Dakota (46.9° N, 103.8° W: paleocoordinates 52.2° N, 81.0° W)

• coordinate based on political unit

When: Sentinel Butte Member (Fort Union Formation), Paleocene (66.0 - 56.0 Ma)

• Just above coal bed at base of butte

Environment/lithology: fluvial; coal

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by R.W. Brown on July 28, 1941

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 58087: authorized by Peter Wilf, entered by Jocelyn Sessa on 17.01.2006

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
unclassified
  -
Planatus raynoldsi
Polypodiopsida
  - Blechnaceae
Woodwardia arctica
Woodwardia arctica Brown 1962
 Polypodiales - Polypodiidae
Dennstaedtia americana
Dennstaedtia americana Knowlton 1910
Angiospermae
 Saxifragales - Cercidiphyllaceae
Cercidiphyllum arcticum
 Trochodendrales - Trochodendraceae
Nordenskioldia borealis
Nordenskioldia borealis Heer 1870
seed
 Fagales - Fagaceae
Quercus sullyi
Quercus sullyi Newberry 1883 oak