Where: Lyon County, Nevada (38.9° N, 119.3° W: paleocoordinates 38.8° N, 116.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Coal Valley Formation, Late/Upper Hemphillian (10.3 - 4.9 Ma)

• "early late Hemphillian... about 30 m above the tuff dated at" 6.98 +/- 0.01 Ma using Ar/Ar on sanidine

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Reposited in the LACM

Collection methods: bulk, sieve

• from "Small mammal fossil bearing matrix"

Primary reference: T. S. Kelly. 2007. A new species of Bensonomys (Rodentia, Cricetidae) from the early late Hemphillian (late Miocene), Coal Valley Formation, Smith Valley, Nevada. Paludicola 6(3):1255-138 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75859: authorized by John Alroy, entered by John Alroy on 01.11.2007, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)