Also known as UCMP 1065, 1090, 1095
DUPLICATE REF 3234 or 3235

Where: Humboldt County, Nevada (41.1° N, 117.8° W: paleocoordinates 41.9° N, 114.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Virgin Valley Formation, Barstovian (16.0 - 13.6 Ma)

• spans a rhyolite vent dated at 15.72 +/- 0.07 Ma on biotite and overlies a rhyolite with a youngest date of 16.11 +/- 0.03 on sanidine (both SLCF 40Ar/39Ar)

Environment/lithology: terrestrial

Reposited in the UCMP

Primary reference: R. A. Stirton. 1940. Proceedings of the Sixth Pacific Science Congress 2 [J. Alroy/J. Alroy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 19103: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)