Sharps (SDSM V-5354) (Oligocene of the United States)

Also known as LACM 1819; St. John's

Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 44.1° N, 95.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: upper Member (Sharps Formation), Geringian (30.8 - 26.3 Ma)

Environment/lithology: terrestrial

Reposited in the SDSM

Primary reference: J. R. Macdonald. 1970. Review of the Miocene Wounded Knee faunas of southwestern South Dakota. Bulletin of the Los Angeles County Museum of Natural History, Science 8:165-82 [J. Alroy/J. Alroy/C. Bell]more details

PaleoDB collection 17630: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 100 (including est. 30 Palaeocastor)
Mammalia
 Rodentia - Aplodontidae
Meniscomys hippodus Cope 1878 mountain beaver
Campestrallomys dawsonae1 Macdonald 1963 mountain beaver
 Rodentia - Florentiamyidae
Sanctimus stuartae n. sp. Macdonald 1970 rodent
Hitonkala andersontau n. sp. Macdonald 1963 rodent
 Rodentia - Heteromyidae
"Proheteromys fedti n. sp." = Proharrymys fedti
"Proheteromys fedti n. sp." = Proharrymys fedti Macdonald 1963 rodent
 Rodentia - Castoridae
Capacikala gradatus Cope 1878 beaver
Palaeocastor sp.1 Leidy 1869 beaver
 Lagomorpha - Leporidae
Palaeolagus philoi Dawson 1958 rabbit
Palaeolagus hypsodus Schlaikjer 1935 rabbit
? Megalagus cf. primitivus Schlaikjer 1935 rabbit
 Perissodactyla - Rhinocerotidae
"Diceratherium gregorii" = Diceratherium armatum
"Diceratherium gregorii" = Diceratherium armatum Marsh 1875 rhinoceros
 Perissodactyla - Equidae
"Archaeohippus equinanus" = Miohippus equinanus1
"Archaeohippus equinanus" = Miohippus equinanus1 Osborn 1918 anchitheriine horse
 Tribosphenida - Proscalopidae
Proscalops evelynae n. sp. Macdonald 1963 placental
includes "Arctoryctes terrenus" according to Barnosky 1981; (1 + 2 + 1 new)
 Carnivora - Canidae
Hesperocyoninae indet.1 Tedford 1978 canid
Cynodesmus thooides1 Scott 1893 canid
"Mesocyon" cf. temnodon2 Wortman and Matthew 1899 canid
Cynarctoides roii1 Macdonald 1963 bone-crushing dog
Archaeocyon leptodus3 Schlaikjer 1935 bone-crushing dog
 Carnivora -
? Palaeogale sp. von Meyer 1846 carnivoran
 Ungulata - Merycoidodontidae
Leptauchenia decora1 Leidy 1856 oreodont
 Ungulata - Leptochoeridae
Leptochoerus sp. Leidy 1856 even-toed ungulate
mentioned by Macdonald 1957
 Ungulata - Anthracotheriidae
Arretotherium sp. Douglass 1902 anthracothere
 Ungulata - Hypertragulidae
Nanotragulus loomisi1 Lull 1922 ruminant
 Theriiformes - Herpetotheriidae
Herpetotherium youngi1 McGrew 1937 marsupial