Transient Trench (UCMP V-71183) (Eocene of the United States)

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: Friars Formation (La Jolla Group), 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 16684: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Squamata - Xantusiidae
Palaeoxantusia allisoni Schatzinger 1980 night lizard
 Squamata - Iguanidae
Parasauromalus olseni Gilmore 1928 squamates
Mammalia
 Artiodactyla - Oromerycidae
? Merycobunodon sp. Golz 1976 even-toed ungulate
 Theriamorpha - Sespedectidae
Crypholestes vaughni Novacek 1976 placental
Novacek 1976
 Theriamorpha - Geolabididae
Centetodon sp.4 Marsh 1872 placental
 Theriamorpha -
Aethomylos simplicidens Novacek 1976 placental
Novacek 1976
 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 - Omomyidae
Washakius woodringi Stock 1938 tarsier
Ourayia sp.3 Gazin 1958 tarsier
"Hemiacodon nr. gracilis A"; "? Macrotarsius nr. jepseni" of Lillegraven 1980; "Macrotarsiini indet." of Walsh 1991
 Primates - Microsyopidae
Microsyops kratos Stock 1938 primate
Uintasorex montezumicus Lillegraven 1976 primate
 Theriamorpha - Peradectidae
Peradectes californicus1 Stock 1936 marsupial