Where: Beaverhead County, Montana (45.2° N, 113.1° W: paleocoordinates 46.1° N, 108.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Oligocene to Oligocene (33.9 - 5.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: "floodplain"; shale

Size class: macrofossils

Preservation: mold/impression, original carbon

Collection methods: surface (in situ),

Primary reference: H. F. Becker. 1969. Fossil Plants of the Tertiary Beaverhead Basins in Southwestern Montana. Palaeontographica Abteilung B 127:1-142 [H. Sims/H. Lindon/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23972: authorized by Hallie Sims, entered by Heather Lindon on 25.07.2002, edited by Summer Ostrowski

Creative Commons license: CC BY (attribution)