OCPC 2131 (Miocene to of the United States)

Where: Orange County, California (33.7° N, 117.6° W: paleocoordinates 33.1° N, 114.2° W)

• coordinate estimated from map

When: La Vida Member (Puente Formation), Serravallian to Serravallian (13.8 - 7.2 Ma)

• lower Mohnian Californian stage, suggesting that the site is middle Miocene in age

•Based on the correlated timescale of Blake (1991), the La Vida member and OCPC 22650 are approximately 8.75 to 13.7 Ma in age. Specimen OCPC 22650 represents the first fossil specimen described from the La Vida member and the first mam- mal specimen described from the Puente Formation.

Environment/lithology: marine; gray siltstone

Size class: macrofossils

Primary reference: G.-P. Santos, J. F. Parham, and B. L. Beatty. 2016. New data on the ontogeny and senescence of Desmostylus (Desmostylia, Mammalia). Journal of Vertebrate Paleontology e1078344 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 176780: authorized by Mark Uhen, entered by Mark Uhen on 02.03.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

 Perissodactyla - Desmostylidae
Desmostylus sp. Marsh 1888 desmostylian