Where: Big Horn County, Wyoming (44.3° N, 108.1° W: paleocoordinates 49.1° N, 90.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

• "middle Gray Bull"

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Reposited in the ROM

Primary reference: A. E. Wood. 1962. The Early Tertiary Rodents of the Family Paramyidae. Transactions of the American Philosophical Society 52(1):3-261 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 109003: authorized by John Alroy, entered by John Alroy on 09.05.2011

Creative Commons license: CC BY (attribution)