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)
Amphibia
 Salientia - Pelobatidae
"Scaphiopus neuter n. sp." = Spea neuter3
"Scaphiopus neuter n. sp." = Spea neuter3 Kluge 1966 spadefoot toad
Mammalia
 Rodentia - Florentiamyidae
"Sanctimus clasoni" = Fanimus clasoni, Florentiamys agnewi n. sp.
"Sanctimus clasoni" = Fanimus clasoni Macdonald 1963 rodent
Florentiamys agnewi n. sp. Macdonald 1963 rodent
 Rodentia - Aplodontidae
"Prosciurus dawsonae" = Campestrallomys dawsonae
"Prosciurus dawsonae" = Campestrallomys dawsonae Macdonald 1963 mountain beaver
 Rodentia - Castoridae
Palaeocastor peninsulatus6 Cope 1881 beaver
Capacikala gradatus Cope 1878 beaver
Capatanka sp.1 Macdonald 1963 beaver
 Rodentia - Cricetidae
"Paciculus mcgregori" = Geringia mcgregori, "Eumys blacki" = Leidymys blacki
"Paciculus mcgregori" = Geringia mcgregori Macdonald 1970 mouse
"Eumys blacki" = Leidymys blacki Macdonald 1963 mouse
 Lagomorpha - Leporidae
? Palaeolaginae indet. Dice 1929 rabbit
Palaeolagus hypsodus Schlaikjer 1935 rabbit
Palaeolagus philoi Dawson 1958 rabbit
? Megalagus cf. primitivus Schlaikjer 1935 rabbit
 Primates - Ekgmowechashalidae
Ekgmowechashala philotau Macdonald 1963 primate
 Theriamorpha - Erinaceidae
Ocajila makpiyahe n. sp. Macdonald 1963 hedgehog
 Theriamorpha - Talpidae
"Palaeoscalopus pineridgensis n. sp." = Quadrodens wilsoni
"Palaeoscalopus pineridgensis n. sp." = Quadrodens wilsoni Macdonald 1970 mole
 Theriamorpha - Proscalopidae
Proscalops evelynae2 Macdonald 1963 placental
 Perissodactyla - Rhinocerotidae
"Diceratherium cf. gregorii" = Diceratherium armatum
"Diceratherium cf. gregorii" = Diceratherium armatum Marsh 1875 rhinoceros
 Perissodactyla - Equidae
Miohippus equiceps Cope 1878 anchitheriine horse
Miohippus equinanus Osborn 1918 anchitheriine horse
 Artiodactyla - Tayassuidae
Thinohyus sp.1 Marsh 1875 peccary
 Artiodactyla - Entelodontidae
Entelodontidae indet. Lydekker 1883 even-toed ungulate
 Artiodactyla - Agriochoeridae
Agriochoerus sp. Leidy 1850 agriochoerid
 Artiodactyla - Hypertragulidae
Nanotragulus loomisi1 Lull 1922 ruminant
 Artiodactyla - Leptomerycidae
Leptomerycidae indet.1 Zittel 1893 ruminant
 Artiodactyla - Merycoidodontidae
Mesoreodon minor1 Douglass 1903 oreodont
Leptauchenia major1 Leidy 1856 oreodont
 Carnivora - Nimravidae
Nimravus brachyops Cope 1878 false sabre-tooth
 Carnivora - Palaeogalidae
Palaeogale cf. dorothiae Macdonald 1963 carnivoran
(assuming this is SDSM 62108)
 Carnivora - Canidae
Enhydrocyon pahinsintewakpa4 Macdonald 1963 canid
Sunkahetanka geringensis Barbour and Schultz 1935 canid
confirmed by Wang 1994
"Nothocyon roii" = Cynarctoides roii Macdonald 1963 bone-crushing dog
(see Wang et al. 1999)
Archaeocyon leptodus5 Schlaikjer 1935 bone-crushing dog
 Theriamorpha - Herpetotheriidae
Herpetotherium youngi1 McGrew 1937 marsupial