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)
• bed-level stratigraphic resolution
Environment/lithology: "channel"; sandstone
Size classes: macrofossils, mesofossils
Collection methods: bulk, sieve,
• "sampled by initial dry screening approximately 3000 pounds of bulk matrix through 24 mesh (0.7 mm) stainless steel screens and then water washing the resulting concentrate through the same mesh size"
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 28237: authorized by John Alroy, entered by John Alroy on 01.02.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Hypolagus edensis Frick 1921 rabbit | |
Perognathus sp. Maximillian 1839 pocket mouse | |
Reithrodontomys sp. Giglioli 1874 harvest mouse
"Bensonomys meadensis" = Calomys (Bensonomys) meadensis Hibbard 1956 rodent | |
Neotamias sp. Howell 1929 chipmunk | |
"Equus simplicidens" = Plesippus simplicidens
"Equus simplicidens" = Plesippus simplicidens Cope 1892 horse | |
Notiosorex sp. Baird 1877 gray shrew |