Crumbling Slope (Eocene of the United States)

Also known as UCMP V-71180

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: Upper Tongue Member (Friars Formation), Early/Lower Uintan (46.2 - 40.4 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

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

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 16697: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• assigned to the Mission Valley Fm. by Golz and Lillegraven, "Cypress Canyon Unit" by Walsh 1991, and upper Friars by Walsh 1996b
Amphibia
 Salientia - Pelobatidae
cf. Eopelobates sp. Parker 1929 spadefoot toad
Mammalia
 Rodentia - Ischyromyidae
Microparamys cf. minutus Wilson 1937 rodent
 Rodentia - Eomyidae
Metanoiamys agorus2 Chiment and Korth 1996 rodent
 Rodentia - Sciuravidae
Sciuravus powayensis Wilson 1940 rodent
 Primates - Microsyopidae
Uintasorex montezumicus Lillegraven 1976 primate
 Primates - Omomyidae
Omomyidae indet.3 Gazin 1958 tarsier
 Theriamorpha - Sespedectidae
Crypholestes vaughni Novacek 1976 placental
Novacek 1976
Patriolestes novaceki5 Walsh 1998 placental
"new erinaceoid-like genus" of Novacek 1976
 Theriamorpha -
Aethomylos simplicidens Novacek 1976 placental
Novacek 1976
 Theriamorpha - Geolabididae
Centetodon aztecus4 Lillegraven et al. 1981 placental
according to Novacek 1976, who lists "C. sp."
 Theriamorpha - Nyctitheriidae
cf. Nyctitherium sp. Marsh 1872 placental
Novacek 1976
 Theriamorpha - Herpetotheriidae
Herpetotherium cf. knighti1 McGrew et al. 1959 marsupial
 Theriamorpha - Peradectidae
Peradectes californicus1 Stock 1936 marsupial
Reptilia
 Squamata - Xantusiidae
Palaeoxantusia kyrentos Schatzinger 1980 night lizard
 Squamata -
Tinosaurus cf. stenodon Marsh 1872 squamates
 Squamata - Anguidae
"Pancelosaurus sp." = Odaxosaurus, Glyptosaurinae indet.
"Pancelosaurus sp." = Odaxosaurus Gilmore 1928 squamates
Glyptosaurinae indet. Marsh 1872 squamates