Arroyo Seco (CU 44) ( of the United States)

Where: San Diego County, California (32.9° N, 117.1° W: paleocoordinates 32.7° N, 116.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Huesos/Tapiado Member (Palm Spring Formation), Blancan (4.9 - 1.8 Ma)

• said to be Blancan

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 20112: authorized by John Alroy, entered by John Alroy on 21.09.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Megatherioidea - Megalonychidae
Megalonyx sp.
Megalonyx sp. Harlan 1825 edentate
 Carnivora - Canidae
Canis latrans
Canis latrans Say 1823 coyote
CU 44.3
 Perissodactyla - Equidae
"Equus sp." = Equus, "Equus (Dolichohippus) sp." = Equus
"Equus sp." = Equus Linnaeus 1758 horse
"Equus (Dolichohippus) sp." = Equus Linnaeus 1758 horse
 Artiodactyla - Tayassuidae
Platygonus sp.
Platygonus sp. Leconte 1848 peccary
 Artiodactyla - Camelidae
Hemiauchenia sp., Camelops sp.
Hemiauchenia sp. Gervais and Ameghino 1880 camel
Camelops sp. Leidy 1854 camel
 Artiodactyla - Antilocapridae
Capromeryx sp., Tetrameryx sp.
Capromeryx sp. Matthew 1902 pronghorn
Tetrameryx sp. Lull 1921 pronghorn
 Rodentia - Cricetidae
Peromyscus sp., Sigmodon sp., "Sigmodon medius" = Sigmodon minor, Repomys sp., Hodomys sp., Reithrodontomys sp.
Peromyscus sp. Gloger 1841 deer mouse
Sigmodon sp. Say and Ord 1825 cotton rat
"Sigmodon medius" = Sigmodon minor Gidley 1922 cotton rat
Repomys sp. May 1981 mouse
Hodomys sp. Merriam 1894 mouse
"Neotoma (Hodomys) sp."
Reithrodontomys sp. Giglioli 1874 harvest mouse
 Rodentia - Geomyidae
Geomyidae indet., Microdipodops sp.
Geomyidae indet. Bonaparte 1845 pocket gopher
Microdipodops sp. Merriam 1891 pocket gopher
 Rodentia - Heteromyidae
Dipodomys sp., Dipodomys sp., Dipodomys hibbardi, Dipodomys compactus, Perognathinae indet.
Dipodomys sp. Gray 1841 kangaroo rat
Dipodomys sp. Gray 1841 kangaroo rat
"n. sp. A"
Dipodomys hibbardi Zakrzewski 1981 kangaroo rat
Dipodomys compactus True 1889 Gulf Coast kangaroo rat
Perognathinae indet. Coues 1875 rodent