Where: Montana (45.1° N, 109.2° W: paleocoordinates 50.9° N, 89.2° W)

• coordinate based on nearby landmark

When: Fort Union Formation, Thanetian (59.2 - 56.0 Ma)

• Associated vertebrates and fossil plants indicate Late Paleocene age. Collection lies about 35 feet stratigraphically below coal No. 3.

Environment/lithology: lacustrine; lithified shale

Size class: macrofossils

Preservation: mold/impression

Collected by Erling Dorf in 1930

• Discovered in 1930 by Erling Dorf, while collecting fossil plants. Specimens at Princeton University.

Primary reference: K. W. Cooper. 1941. Davispia bearcreekensis Cooper, a New Cicada from the Paleocene, with a Brief Review of the Fossil Cicadidae. American Journal of Science, Series 5 239:286-304 [C. Labandeira/C. Labandeira/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124225: authorized by Matthew Clapham, entered by Arram Noshirvan on 08.02.2012, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)