PBDB Collection

Crumbling Slope (Eocene of the United States)

Also known as UCMP V-71180

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

• coordinate based on political unit

• small collection-level geographic resolution

When: Upper Tongue Member (Friars Formation), Early/Lower Uintan (46.2 - 39.7 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: CC0 (CC0)

Taxonomic list

• assigned to the Mission Valley Fm. by Golz and Lillegraven, "Cypress Canyon Unit" by Walsh 1991, and upper Friars by Walsh 1996b

Show authors, comments, and common names

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

¹Alroy 2002; ²Chiment and Korth 1996; ³Lillegraven 1980; ⁴Lillegraven et al. 1981; ⁵Walsh 1998