Also known as CM Locality #1935, Unit 16 microfossil quarry

Where: Park County, Montana (45.8° N, 110.5° W: paleocoordinates 46.5° N, 107.2° W)

• coordinate based on political unit

When: Unit 16 Member (Hepburn's Mesa Formation), early Late Barstovian (16.3 - 12.5 Ma)

Environment/lithology: terrestrial

Size class: mesofossils

Reposited in the CM

Primary reference: D. W. Burbank and A. D. Barnosky. 1990. The magnetochronology of Barstovian mammals in southwestern Montana and implications for the initiation of Neogene crustal extension in the northern Rocky Mountains. Geological Society America Bulletin 102 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 18848: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)