Cooper Center 02020 (Eocene of the United States)

Also known as badlands northwest of ETC Windy Ridge; OCPC 2020; OCPC loc. 2021; OCPC loc. 2024; Basal Orange County S/V fauna

Where: Orange County, California (33.8° N, 117.7° W: paleocoordinates 34.1° N, 104.5° W)

When: Sespe Formation, Late/Upper Uintan (46.2 - 39.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; sandstone

Size class: macrofossils

Primary reference: D. P. Whistler and E. B. Lander. 2003. New Late Uintan to Early Hemingfordian Land Mammal Assemblages from the Undifferentiated Sespe and Vaqueros Formations, Orange County, and from the Sespe and Equivalent Marine Formations in Los Angeles, Santa Barbara, and Ventura Counties, Southern California. Bulletin of the American Museum of Natural History 279:231-268 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167831: authorized by Jonathan Marcot, entered by Jonathan Marcot on 04.04.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Primates - Omomyidae
Dyseolemur pacificus Stock 1934 tarsier
 Rodentia - Ischyromyidae
Microparamys woodi Kelly and Whistler 1994 rodent
 Rodentia -
Griphomys alecer Wilson 1940 rodent
 Rodentia - Simimyidae
Simimys simplex Wilson 1935 rodent
 Rodentia - Cylindrodontidae
Pareumys sp. Peterson 1919 rodent
 Tribosphenida - Sespedectidae
Sespedectes singularis Stock 1935 placental
 Artiodactyla - Protoceratidae
Leptoreodon sp. Wortman 1898 protoceratid
 Creodonta -
Creodonta indet. creodont
"small creodonts"
 Tribosphenida - Peradectidae
Peradectes californicus Stock 1936 marsupial
Reptilia
 Squamata - Iguanidae
Parasauromalus sp. Gilmore 1928 squamates
 Squamata - Necrosauridae
Melanosaurinae indet. Gilmore 1928 squamates
 Squamata - Anguidae
Glyptosaurinae indet. Marsh 1872 squamates
 Squamata - Boidae
Boidae indet. Gray 1825 boa
 Squamata - Xantusiidae
Palaeoxantusia sp. Hecht 1956 night lizard