Jack-in-the-Box (UCMP V-6893) (Eocene of the United States)

Also known as UCR RV-7070

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: Mission Valley Formation, Early/Lower Uintan (46.2 - 39.7 Ma)

Environment/lithology: terrestrial

Reposited in the UCMP

Primary reference: D. J. Golz and J. A. Lillegraven. 1977. Summary of known occurrences of terrestrial vertebrates from Eocene strata of southern California. Contributions to Geology, University of Wyoming 15(1):43-65 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 16695: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Stylommatophora - Camaenidae
Mammalia
 Artiodactyla - Protoceratidae
 Artiodactyla - Agriochoeridae
Protoreodon cf. parvus Scott and Osborn 1887 agriochoerid
 Artiodactyla - Oromerycidae
Protylopus cf. petersoni Wortman 1898 even-toed ungulate
 Artiodactyla - Diacodexeidae
Tapochoerus mcmillini2 Walsh 2000 even-toed ungulate
 Theriamorpha - Sespedectidae
Sespedectes singularis Stock 1935 placental
Novacek 1985
 Rodentia - Cylindrodontidae
Pareumys grangeri Burke 1935 rodent
 Rodentia - Simimyidae
Simimys simplex Wilson 1935 rodent
see also Walsh 1997
Reptilia
 Squamata - Iguanidae
Iguanidae indet. Oppel 1811 squamates
"unidentified iguanid, Form B"
Parasauromalus olseni Gilmore 1928 squamates
 Crocodylia - Crocodylidae