Jackrabbit Trail (Site 195) ( of the United States)

Where: Riverside County, California (33.9° N, 117.0° W: paleocoordinates 33.7° N, 116.0° W)

• coordinate based on political unit

When: Unit 4 Member (San Timoteo Formation), Blancan (4.9 - 1.8 Ma)

Environment/lithology: terrestrial

Primary reference: L. B. Albright. 1999. Magnetostratigraphy and biochronology of the San Timoteo Badlands, southern California, with implications for local Pliocene–Pleistocene tectonic and depositional patterns. Geological Society America Bulletin 111(9):1265-1293 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 19737: authorized by John Alroy, entered by John Alroy on 19.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• replaces "Jackrabbit Trail" list of Hehn et al. 1996
there is no discussion of Frick's "San Timoteo" fauna, but it certainly is lower in the section than this locality
generically identifiable NISP 62
Mammalia
 Rodentia - Cricetidae
Reithrodontomys sp.1 Giglioli 1874 harvest mouse
"Sigmodon medius" = Sigmodon minor Gidley 1922 cotton rat
large-sized "S. minor"
Neotoma fossilis Gidley 1922 pack rat
"Ophiomys sp." = Mimomys Forsyth-Major 1902 vole
"Mimomys (Ophiomys) taylori-parvus"
Peromyscus hagermanensis Hibbard 1962 deer mouse
Peromyscus maximus n. sp.1 Albright 1999 deer mouse
 Rodentia - Geomyidae
Thomomys gidleyi Wilson 1933 pocket gopher
 Rodentia - Heteromyidae
Perognathinae indet.1 Coues 1875 rodent
Dipodomys sp.1 Gray 1841 kangaroo rat
sp. A
 Rodentia - Erethizontidae
Erethizon ? cascoensis White 1970 North American porcupine
 Lagomorpha - Leporidae
Hypolagus edensis1 Frick 1921 rabbit
Sylvilagus hibbardi White 1984 cottontail rabbit
 Perissodactyla - Equidae
Equus idahoensis2 Merriam 1918 horse
 Tribosphenida - Soricidae
Sorex leahyi Hibbard 1956 long-tailed shrew