Slug Bed (Miocene of the United States)

Also known as UCMP V-5501

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)

• bed-level stratigraphic resolution

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

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 19550: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 162
thought by Lindsay to be the highest fauna in the "P. stirtoni zone"; actually immediately above the Skyline Tuff, see Woodburne et al. 1990 Fig. 4, section 5
Mammalia
 Rodentia - Sciuridae
Tamias ateles Hall 1930 chipmunk
Miospermophilus sp. Black 1963 squirrel
 Rodentia - Geomyidae
"Proheteromys lophatus" = Mojavemys lophatus1
"Proheteromys lophatus" = Mojavemys lophatus1 Lindsay 1972 pocket gopher
 Rodentia - Heteromyidae
Perognathus furlongi Gazin 1930 pocket mouse
Perognathus minutus James 1963 pocket mouse
Cupidinimus halli1 Wood 1936 rodent
Cupidinimus lindsayi2 Barnosky 1986 rodent
 Rodentia - Eomyidae
Leptodontomys stirtoni1 Lindsay 1972 rodent
 Rodentia - Castoridae
Monosaulax pansus Cope 1874 beaver
 Rodentia - Cricetidae
Copemys tenuis Lindsay 1972 mouse
Copemys longidens Hall 1930 mouse
Copemys pagei Shotwell 1967 mouse
Copemys barstowensis Lindsay 1972 mouse
 Lagomorpha - Leporidae
Hypolagus fontinalis3 Dawson 1958 rabbit
 Theriamorpha - Soricidae
Paradomnina cf. relictus Hutchison 1966 shrew
Limnoecus tricuspis Stirton 1930 shrew
 Theriamorpha - Talpidae
Scalopinae indet. Gill 1875 mole
 Placentalia -
Chiroptera indet. Blumenbach 1779 bat
a bat