Vallecito Creek (CU 60) (Pleistocene of the United States)

Where: San Diego County, California (32.9° N, 117.1° W: paleocoordinates 32.9° N, 116.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Huesos/Tapiado Member (Palm Spring Formation), Irvingtonian (1.8 - 0.3 Ma)

• said to be Irvingtonian

Environment/lithology: terrestrial

Primary reference: M. L. Cassiliano. 1999. Biostratigraphy of Blancan and Irvingtonian mammals in the Fish Creek-Vallecito Creek section, southern California, and a review of the Blancan-Irvingtonian boundary. Journal of Vertebrate Paleontology 19(1):169-186 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 20128: authorized by John Alroy, entered by John Alroy on 21.09.1999, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Geomyidae
Geomyidae indet.1 Bonaparte 1845 pocket gopher
Nerterogeomys garbanii1 White and Downs 1961 pocket gopher
Nerterogeomys anzensis1 Becker and White 1981 pocket gopher
Thomomys sp. Wied-Neuwied 1839 pocket gopher
 Rodentia - Cricetidae
"Sigmodon medius" = Sigmodon minor1, Hodomys sp.
"Sigmodon medius" = Sigmodon minor1 Gidley 1922 cotton rat
Hodomys sp. Merriam 1894 mouse
"Neotoma (Hodomys) sp."
 Lagomorpha - Leporidae
Sylvilagus sp. Gray 1867 cottontail rabbit
Sylvilagus hibbardi White 1984 cottontail rabbit
 Perissodactyla - Equidae
"Equus (Equus) sp." = Equus, Equus (Hemionus) sp., "Equus (Dolichohippus) sp." = Equus, "Equus simplicidens" = Plesippus simplicidens
"Equus (Equus) sp." = Equus Linnaeus 1758 horse
Equus (Hemionus) sp. Stehlin and Graziosi 1935 horse
"Equus (Dolichohippus) sp." = Equus Linnaeus 1758 horse
"Equus simplicidens" = Plesippus simplicidens Cope 1892 horse
CU 60.3
 Artiodactyla - Tayassuidae
Platygonus sp. Leconte 1848 peccary
 Artiodactyla - Camelidae
Camelops sp. Leidy 1854 camel
Hemiauchenia sp. Gervais and Ameghino 1880 camel
 Artiodactyla - Cervidae
Odocoileus sp. Rafinesque 1832 New World deer
 Artiodactyla - Bovidae
Euceratherium sp. Furlong and Sinclair 1904 shrub-ox
 Artiodactyla - Antilocapridae
Capromeryx sp. Matthew 1902 pronghorn
 Carnivora - Felidae
Smilodon gracilis Cope 1880 saber-toothed cat
 Megatherioidea - Megalonychidae
Megalonyx sp. Harlan 1825 edentate
Megalonyx wheatleyi Cope 1871 edentate
 Proboscidea - Gomphotheriidae
Stegomastodon sp. Pohlig 1912 gomphothere
 Proboscidea - Mammutidae
Mammut pacificus2 Dooley et al. 2019 mastodon
also referred to as Mammut cf. americanum