Sanders (UM-K2-53) ( of the United States)

Where: Meade County, Kansas (37.2° N, 100.3° W: paleocoordinates 37.3° N, 99.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Missler Member (Ballard Formation), Blancan (4.9 - 1.8 Ma)

Environment/lithology: terrestrial

Primary reference: C. W. Hibbard. 1956. Vertebrate fossils from the Meade Formation of southwestern Kansas. Papers of the Michigan Academy of Science, Arts, and Letters 41(41):145-203 [J. Alroy/J. Alroy/W. Clyde]more details

PaleoDB collection 19938: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• most or all of this material is from UM-K2-53 because the duplicate list of Taylor 1960 excludes material from UM-K1-53
Reptilia
 Squamata - Colubridae
Thamnophis cf. sauritus2 garter snake
"Thamnophis near sauritus" from "Sanders" (possibly UM-K1-53 instead)
Mammalia
 Proboscidea - Proboscidea
Proboscidea indet. proboscidean
"mastodont": Taylor 1960
 Rodentia - Cricetidae
"Bensonomys meadensis n. sp." = Calomys (Bensonomys) meadensis, "Sigmodon medius" = Sigmodon minor3, Pliolemmus antiquus, "Ophiomys meadensis" = Pliophenacomys meadensis1
"Bensonomys meadensis n. sp." = Calomys (Bensonomys) meadensis Hibbard 1956 rodent
"Sigmodon medius" = Sigmodon minor3 Gidley 1922 cotton rat
Pliolemmus antiquus Hibbard 1937 rodent
"Ophiomys meadensis" = Pliophenacomys meadensis1 Hibbard 1956 rodent
 Rodentia - Zapodidae
Zapus sandersi n. sp. Hibbard 1956 jumping mouse
 Rodentia - Geomyidae
Geomys tobinensis Hibbard 1944 pocket gopher
 Rodentia - Heteromyidae
Perognathus cf. pearlettensis Hibbard 1941 pocket mouse
Prodipodomys sp. Hibbard 1939 rodent
 Soricomorpha - Soricidae
Sorex sandersi n. sp. Hibbard 1956 long-tailed shrew
 Carnivora - Mustelidae
Mustelidae indet.3 Fischer 1817 mustelid carnivore
 Perissodactyla - Equidae
Equus sp.1 Linnaeus 1758 horse
Nannippus peninsulatus1 Cope 1885 hipparionine horse