Mission del Oro (Upper) (Eocene of the United States)

Also known as SDSNH 3570, 3572, 3574

Where: San Diego County, California (32.9° N, 117.1° W: paleocoordinates 33.1° N, 103.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: C Member (Santiago Formation), Uintan (46.2 - 39.7 Ma)

Environment/lithology: terrestrial

Primary reference: S. L. Walsh. 1996. Middle Eocene mammal faunas of San Diego County, California. In D. R. Prothero, R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 74-119 [J. Alroy/J. Alroy/P. Mannion]more details

PaleoDB collection 16603: authorized by John Alroy, entered by John Alroy on 12.04.1997

Creative Commons license: CC BY (attribution)

Taxonomic list

• Walsh 1991 gives separate lists for SDSNH 3572 and 3574, but they include only Simimys simplex and an indeterminate ischyromyoid
Mammalia
 Theriamorpha - Peradectidae
Peradectes californicus Stock 1936 marsupial
 Perissodactyla -
? Rhinocerotoidea indet. Gray 1821 odd-toed ungulate
 Perissodactyla - Brontotheriidae
cf. Duchesneodus sp. Lucas and Schoch 1982 brontothere
 Perissodactyla - Equidae
Epihippus sp. Marsh 1878 horse
 Artiodactyla - Oromerycidae
Protylopus cf. robustus Golz 1976 even-toed ungulate
 Artiodactyla - Agriochoeridae
Protoreodon walshi2 Theodor 1999 agriochoerid
 Theriamorpha - Sespedectidae
Sespedectes sp. Stock 1935 placental
Proterixoides davisi Stock 1935 placental
 Rodentia - Cylindrodontidae
Pareumys sp. Peterson 1919 rodent
 Rodentia - Simimyidae
Simimys simplex Wilson 1935 rodent
 Rodentia - Ischyromyidae
cf. Mytonomys burkei1 Wilson 1940 rodent
Eohaplomys cf. serus Stock 1935 rodent
Microparamys sp. Wood 1959 rodent
 Rodentia -
Griphomys sp. Wilson 1940 rodent
 Rodentia - Eomyidae
Metanoiamys sp.1 Chiment and Korth 1996 rodent