Margo Quarry (Miocene of the United States)

Also known as UCMP V-5270

Where: San Bernardino County, California (34.8° N, 117.0° W: paleocoordinates 34.1° N, 112.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Upper Member (Barstow Formation), Barstovian (16.0 - 13.6 Ma)

Environment/lithology: terrestrial

Reposited in the UCMP

Primary reference: E. H. Lindsay. 1972. Small mammal fossils from the Barstow Formation, California. University of California Publications in Geological Sciences 93:1-104 [J. Alroy/J. Alroy/J. Alroy]more details

PaleoDB collection 19430: authorized by John Alroy, entered by John Alroy on 19.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 105
"C. longidens zone"
immediately above Hemicyon Tuff in Carnivore Canyon, see Fig. 2
Mammalia
 Rodentia - Heteromyidae
Cupidinimus lindsayi2 Barnosky 1986 rodent
Cupidinimus halli1 Wood 1936 rodent
"Heliscomys subtilis" = Mookomys subtilis1 Lindsay 1972 rodent
Perognathus minutus James 1963 pocket mouse
Perognathus furlongi Gazin 1930 pocket mouse
 Rodentia - Geomyidae
Phelosaccomys sp.3, "Proheteromys lophatus" = Mojavemys lophatus1
Phelosaccomys sp.3 Korth and Reynolds 1994 pocket gopher
"Proheteromys lophatus" = Mojavemys lophatus1 Lindsay 1972 pocket gopher
 Rodentia - Cricetidae
Copemys tenuis Lindsay 1972 mouse
Copemys longidens Hall 1930 mouse
 Lagomorpha - Leporidae
Hypolagus fontinalis4 Dawson 1958 rabbit