Where: Natrona County, Wyoming (43.2° N, 107.1° W: paleocoordinates 44.0° N, 103.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Arikaree Formation, Hemingfordian (20.4 - 16.0 Ma)

Environment/lithology: eolian

Size class: macrofossils

Reposited in the UCMP

Primary reference: J. Munthe. 1988. Miocene mammals of the Split Rock area, Granite Mountains basin, central Wyoming. University of California Publications in Geological Sciences 126:1-136 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18909: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)