USGS locality 4626, Miles City, MT, lower Fort Union Fm (Paleocene of the United States)

Where: Montana (46.4° N, 105.8° W: paleocoordinates 52.1° N, 83.4° W)

• coordinate estimated from map

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

• lower Fort Union, about 50 feet below the Big Dirty coal bed - from USGS unpublished log book.

• formation-level stratigraphic resolution

Environment/lithology: fluvial; sandstone and coal

• 'sandstones, shales, and coal beds.' From Brown

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by C. Smith, 1907.

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 40746: authorized by Peter Wilf, entered by Jocelyn Sessa on 29.06.2004

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
Bivalvia
 Actinodontida - Cycloconchidae
Davidia antiqua
Davidia antiqua Manchester 2002 clam
seed
Angiospermae
 Cornales - Cornaceae
Cornus hyperborea
Cornus hyperborea Heer 1871 dogwood
 Garryales - Eucommiaceae
Eucommia serrata
 Lamiales - Oleaceae
Fraxinus eocenica
Fraxinus eocenica Lesquereux 1878 ash