Pleasanton (Miocene of the United States)

Also known as Mount Diablo Base; UCMP V-3108

Where: Alameda County, California (37.7° N, 121.9° W: paleocoordinates 36.9° N, 117.3° W)

• coordinate estimated from map

When: Briones Formation, Barstovian (16.0 - 13.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; sandstone

Size class: macrofossils

Reposited in the UCMP

Primary reference: V. L. VanderHoof. 1937. A study of the Miocene sirenian Desmostylus. University of California Publications in Geological Sciences 24(8):169-262 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 91538: authorized by Mark Uhen, entered by Mark Uhen on 01.10.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

 Perissodactyla - Desmostylidae
Desmostylus hesperus Marsh 1888 desmostylian