USGS locality 8928, About 9 miles northwest of Craig. Fort Union (Paleocene of the United States)

Where: Colorado (40.6° N, 107.7° W: paleocoordinates 46.7° N, 87.4° W)

• coordinate estimated from map

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

Environment/lithology: fluvial; sandstone and coal

• coal bearing ss, dark sandy shales, and clays

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Collected by R.W. Brown on Sept. 16, 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 53076: authorized by Peter Wilf, entered by Jocelyn Sessa on 03.09.2005

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
 Vitales - Vitaceae
Ampelopsis acerifolia Newberry 1868
 Rosales - Rhamnaceae
Zizyphus fibrillosus Lesquereux 1872 buckthorn
 Fagales - Fagaceae
Castanea intermedia Lesquereux 1878 chestnut
 Saxifragales - Cercidiphyllaceae
 Laurales - Lauraceae
Sassafras thermale Brown 1962 sassafras
 Coniferales - Cupressaceae
Glyptostrobus nordenskioldi Chinese swamp cypress
Polypodiopsida
  - Blechnaceae
Blechnum anceps Brown 1962
 Schizaeales - Polypodiidae
Anemia elongata Newberry 1863