Pearson Ranch (Bed SS22) (Eocene of the United States)

Also known as LACM 5648

Where: Ventura County, California (34.3° N, 119.0° W: paleocoordinates 33.7° N, 107.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Sespe Formation, Duchesnean (40.4 - 37.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Reposited in the LACM

Primary reference: T. S. Kelly. 1990. Biostratigraphy of Uintan and Duchesnean land mammal assemblages from the Middle Member of the Sespe Formation, Simi Valley, California. Contributions in Science, Natural History Museum of Los Angeles County 419:1-42 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 16812: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Sespedectidae
Sespedectes singularis Stock 1935 placental
 Perissodactyla - Brontotheriidae
Duchesneodus uintensis Peterson 1931 brontothere
 Artiodactyla - Protoceratidae
Leptoreodon stocki Kelly 1990 protoceratid
 Artiodactyla - Agriochoeridae
Protoreodon pacificus Golz 1976 agriochoerid