Glenn Olson Quarry (Miocene of the United States)

Also known as SDSM V-741

Where: Charles Mix County, South Dakota (43.5° N, 99.1° W: paleocoordinates 44.1° N, 95.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: "rock rose" zone Member (Fort Randall Formation), Barstovian (16.0 - 13.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: "channel"; lithology not reported

• "stream channel"
• none given

Reposited in the SDSM

Collection methods: bulk, sieve

• "about 45 kilograms of matrix were collected" and screenwashed

Primary reference: M. Green and J. A. Holman. 1977. A late Tertiary stream channel fauna from South Bijou Hill, South Dakota. Journal of Paleontology 51(3):543-547 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18303: authorized by John Alroy, entered by John Alroy on 05.08.1992

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 17
Osteichthyes
 Salientia - Hylidae
Hyla sp. Laurenti 1768 tree frog
 Caudata - Urodela
Ambystoma minshalli Tihen and Chantell 1963 mole salamander
Reptilia
 Squamata - Boidae
Charina prebottae Brattstrom 1958 boa
 Squamata - Colubridae
Elaphe nebraskensis Holman 1964 colubrid snake
Lampropeltis similis Holman 1964 colubrid snake
Salvadora sp. Baird and Girard 1853 colubrid snake
 Squamata - Xantusiidae
Xantusiidae indet. Baird 1858 night lizard
Mammalia
 Rodentia - Cricetidae
Copemys sp. Wood 1936 mouse
 Rodentia - Heteromyidae
Heteromyidae indet. Gray 1868 rodent
 Rodentia - Castoridae
Monosaulax sp. Stirton 1935 beaver
 Rodentia - Mylagaulidae
Mylagaulidae indet.1 Cope 1881 rodent
 Rodentia - Zapodidae
Megasminthus tiheni Klingener 1966 jumping mouse
Schaubeumys sp.1 Wood 1935 jumping mouse
Macrognathomys gemmacolis n. sp.2 Green 1977 jumping mouse
 Tribosphenida - Soricidae
Limnoecus niobrarensis Macdonald 1947 shrew
 Insectivora -
Insectivora indet. Bowdich 1821 insectivoran