USGS locality 5831, Richfield Springs Ranch on east bank of Jimmy Camp Creek (Paleocene of the United States)

Where: Colorado Springs County, Colorado (38.8° N, 104.8° W: paleocoordinates 44.5° N, 84.9° W)

• coordinate based on political unit

When: Dawson Arkose Formation, Paleocene (66.0 - 56.0 Ma)

• Denver Basin

Environment/lithology: fluvial; argillaceous sandstone and coal

• Dawson arkose - arenaceous clays, shales, coals.

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Collected by F.H. Knowlton & W.T. Lee on July 11, 1910.

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 52950: authorized by Peter Wilf, entered by Jocelyn Sessa on 29.08.2005

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
 Polypodiales - Polypodiidae
Saccoloma gardneri
Saccoloma gardneri Lesquereux 1873
Angiospermae
 Nymphaeales - Nymphaeaceae
Nymphaea pulchella
Nymphaea pulchella Brown 1962 water lily
Dombeyopsis
  -
Dombeyopsis magnifica
Gastropoda
 Sorbeoconcha - Ficidae
Ficus affinis
Ficus affinis fig shell