USGS locality 336 near Hot Sulphur Springs, CO Middle Park Fm (Paleocene of the United States)

Also known as USGS locality 336

Where: Grand County, Colorado (40.1° N, 106.1° W: paleocoordinates 45.9° N, 85.9° W)

• coordinate based on political unit

When: Middle Park Formation, Paleocene (66.0 - 56.0 Ma)

• 'The horizon is about on a line between the Lignite series and the dark sandstones formed by the eruption debris from breccia beds.'

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; micaceous sandstone and shale

• 'dark micaceous sandstone or shale'

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by geologist L. Cannon, in the summer of Summer 1889.

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 40060: authorized by Peter Wilf, entered by Jocelyn Sessa on 16.06.2004

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
 Laurales - Lauraceae
Sassafras thermale
Sassafras thermale Brown 1962 sassafras
 Fabales - Fabaceae
Leguminosites coloradensis
Leguminosites coloradensis Knowlton 1922 legume
seed