Poggi Canyon (SDSNH locality 4286) ( of the United States)

Also known as Otay Ranch

Where: San Diego County, California (32.6° N, 117.0° W: paleocoordinates 32.5° N, 116.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: subunit 2 Member (San Diego Formation), Blancan (4.9 - 1.8 Ma)

• said to be early Blancan

Environment/lithology: terrestrial; shelly/skeletal mudstone

• "bone-rich mudstone"

Size classes: macrofossils, mesofossils

Collection methods: bulk, sieve

Primary reference: H. M. Wagner, B. O. Riney, T. A. Deméré and D. R. Prothero. 2001. Magnetic stratigraphy and land mammal biochronology of the nonmarine facies of the Pliocene San Diego Formation, San Diego County, California. Magnetic Stratigraphy of the Pacific Coast Cenozoic (D. R. Prothero, ed.) 359-368 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 19705: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• said to be a new fauna and therefore presumably not the same as the lower San Diego Formation fauna of Demere 1994 (see)

•position is clearly low in the formation

•from a normal polarity zone; a reversed zone is present lower in the section

Show authors, comments, and common names
Mammalia
 Lagomorpha - Leporidae
Hypolagus edensis1
Hypolagus edensis1 Frick 1921 rabbit
 Rodentia - Geomyidae
Thomomys gidleyi2
Thomomys gidleyi2 Wilson 1933 pocket gopher
 Rodentia - Heteromyidae
Perognathus sp.2
Perognathus sp.2 Maximillian 1839 pocket mouse
 Rodentia - Cricetidae
Neotoma fossilis2, Reithrodontomys sp.2, "Bensonomys meadensis" = Calomys (Bensonomys) meadensis1
Neotoma fossilis2 Gidley 1922 pack rat
Reithrodontomys sp.2 Giglioli 1874 harvest mouse
"Bensonomys meadensis" = Calomys (Bensonomys) meadensis1 Hibbard 1956 rodent
 Artiodactyla - Antilocapridae
Antilocapridae indet.2
Antilocapridae indet.2 Gray 1866 pronghorn
not listed at any exact locality by Wagner et al. 2001
 Artiodactyla - Camelidae
Camelidae indet.2
Camelidae indet.2 Gray 1821 camel
 Perissodactyla - Equidae
"Equus simplicidens" = Plesippus simplicidens1
"Equus simplicidens" = Plesippus simplicidens1 Cope 1892 horse
 Carnivora - Felidae
"Lynx rexroadensis" = Felis rexroadensis1
"Lynx rexroadensis" = Felis rexroadensis1 Stephens 1959 cat
 Soricomorpha - Soricidae
Notiosorex sp.
Notiosorex sp. Baird 1877 gray shrew
 Proboscidea - Gomphotheriidae
Gomphotheriidae indet.2
Gomphotheriidae indet.2 Hay 1922 gomphothere
1Alroy 2002; 2Wagner et al. 2000