USGS locality 3979, Signal Butte, near Miles City, MT, Fort Union Fm (Paleocene of the United States)

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

• coordinate based on political unit

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

• lower Fort Union.

• formation-level stratigraphic resolution

Environment/lithology: fluvial; carbonaceous shale

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Specimens were collected by Leonard, Holgate & Clark, Aug. 28 and Sept. 1, 1906.

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 40272: authorized by Peter Wilf, entered by Jocelyn Sessa on 21.06.2004

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
Laurophyllum perseanum
Laurophyllum perseanum Brown 1962 laurel
 Fagales - Betulaceae
Corylus insignis
Corylus insignis Heer 1871 hazel
 Rosales - Ulmaceae
Zelkova planeroides