USGS locality 8164, In clinkered sandstone above Snyder Coal. (Paleocene of the United States)

Where: Custer County, Montana (46.0° N, 106.1° W: paleocoordinates 51.7° N, 83.8° W)

• coordinate estimated from map

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

• In clinkered sandstone above Snyder Coal.

Environment/lithology: fluvial; sandstone

• clinkered sandstone

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Collected by R.W. Brown on Sept. 16, 1929

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 53534: 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.
Show authors, comments, and common names
Polypodiopsida
 Equisetales - Equisetidae
Equisetum sp.
Equisetum sp. Linnaeus 1753 horsetail
stems with sheaths
Angiospermae
 Proteales - Platanaceae
Credneria ? daturaefolia