Sharps (SDSM V-5360) (Oligocene of the United States)

Also known as LACM 1861, LACM 1982

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

Environment/lithology: terrestrial

Size classes: macrofossils, mesofossils

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 17636: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Chris Bell

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 140 (including est. 40 Palaeocastor)
Osteichthyes
 Salientia - Pelobatidae
"Scaphiopus neuter n. sp." = Spea neuter3
"Scaphiopus neuter n. sp." = Spea neuter3 Kluge 1966 spadefoot toad
Mammalia
 Primates - Ekgmowechashalidae
Ekgmowechashala philotau Macdonald 1963 primate
 Rodentia - Cricetidae
Geringia mcgregori1 Macdonald 1970 mouse
Leidymys blacki1 Macdonald 1963 mouse
 Rodentia - Aplodontidae
Campestrallomys dawsonae1 Macdonald 1963 mountain beaver
 Rodentia - Florentiamyidae
Fanimus clasoni1 Macdonald 1963 rodent
Florentiamys agnewi n. sp. Macdonald 1963 rodent
 Rodentia - Castoridae
Capatanka sp.1 Macdonald 1963 beaver
Capacikala gradatus Cope 1878 beaver
Palaeocastor peninsulatus6 Cope 1881 beaver
 Lagomorpha - Leporidae
? Palaeolaginae indet. Dice 1929 rabbit
Palaeolagus philoi Dawson 1958 rabbit
Palaeolagus hypsodus Schlaikjer 1935 rabbit
? Megalagus cf. primitivus Schlaikjer 1935 rabbit
 Lipotyphla - Erinaceidae
Ocajila makpiyahe n. sp. Macdonald 1963 hedgehog
 Lipotyphla - Talpidae
Quadrodens wilsoni1 Macdonald 1970 mole
 Perissodactyla - Rhinocerotidae
"Diceratherium cf. gregorii" = Diceratherium armatum
"Diceratherium cf. gregorii" = Diceratherium armatum Marsh 1875 rhinoceros
 Perissodactyla - Equidae
Miohippus equiceps, "Archaeohippus equinanus" = Miohippus equinanus1
Miohippus equiceps Cope 1878 anchitheriine horse
"Archaeohippus equinanus" = Miohippus equinanus1 Osborn 1918 anchitheriine horse
 Tribosphenida - Proscalopidae
Proscalops evelynae2 Macdonald 1963 placental
 Carnivora - Canidae
Sunkahetanka geringensis Barbour and Schultz 1935 canid
confirmed by Wang 1994
Enhydrocyon pahinsintewakpa4 Macdonald 1963 canid
Cynarctoides roii1 Macdonald 1963 bone-crushing dog
Archaeocyon leptodus5 Schlaikjer 1935 bone-crushing dog
 Carnivora - Nimravidae
Nimravus brachyops Cope 1878 false sabre-tooth
 Carnivora -
Palaeogale cf. dorothiae Macdonald 1963 carnivoran
(assuming this is SDSM 62108)
 Ungulata - Merycoidodontidae
Leptauchenia major1 Leidy 1856 oreodont
Mesoreodon minor1 Douglass 1903 oreodont
 Ungulata - Tayassuidae
Thinohyus sp.1 Marsh 1875 peccary
 Ungulata - Entelodontidae
Entelodontidae indet. Lydekker 1883 even-toed ungulate
 Ungulata - Agriochoeridae
Agriochoerus sp. Leidy 1850 agriochoerid
 Ungulata - Hypertragulidae
Nanotragulus loomisi1 Lull 1922 ruminant
 Ungulata - Leptomerycidae
Leptomerycidae indet.1 Zittel 1893 ruminant
 Theriiformes - Herpetotheriidae
Herpetotherium youngi1 McGrew 1937 marsupial