USGS locality 8190, 1 mile north of Intake; to left of road going to Sidney (Paleocene of the United States)

Where: Montana (47.3° N, 104.5° W: paleocoordinates 52.7° N, 81.6° W)

• coordinate based on political unit

When: Fort Union? Formation, Paleocene (66.0 - 56.0 Ma)

• Ft. Union or Ludlow Lignitic?

Environment/lithology: fluvial; coal

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Collected by R.W. Brown and K.J. Murata on Aug. 21, 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 53538: authorized by Peter Wilf, entered by Jocelyn Sessa on 11.09.2005

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.
Angiospermae
 Malvales - Sterculiaceae
"Pterospermites cordatus" = Penosphyllum cordatum
"Pterospermites cordatus" = Penosphyllum cordatum Ward 1885
Leaves. 1 insect
 Garryales - Eucommiaceae
Eucommia serrata
Leaves. 1 insect
Beringiaphyllum cupanioides
  -
Beringiaphyllum cupanioides Manchester et al. 1999
Leaves. 1 insect