Also known as UCMP V-73098

Where: Garfield County, Montana (47.5° N, 107.0° W: paleocoordinates 53.9° N, 81.9° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Hell Creek Formation, Puercan (66.0 - 63.3 Ma)

• channel sandstone below Z Coal

• bed-level stratigraphic resolution

Environment/lithology: fine channel fill; silty sandstone

Size class: mesofossils

Reposited in the UCMP

Collection methods: surface (float),

Primary reference: J. D. Archibald. 1982. A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana. University of California Publications in Geological Sciences 122:1-286 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 108199: authorized by John Alroy, entered by John Alroy on 25.04.2011

Creative Commons license: CC BY (attribution)