Sharps (Cedar Pass Stream Channel) ( of the United States)

Also known as Sharps A

Where: Jackson County, South Dakota (43.5° N, 101.9° W: paleocoordinates 44.3° N, 96.0° W)

• coordinate based on political unit

When: Arikareean (29.5 - 18.5 Ma)

Environment/lithology: terrestrial

Primary reference: D. C. Parris and M. Green. 1969. Dinohyus (Mammalia: Entelodontidae) in the Sharps Formation, South Dakota. Journal of Paleontology 43(5):1277-1279 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 17606: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

• 70' above Rockyford Ash
closely compared with Godsell Ranch
material of Tedford et al. 1996 is definitely from the same locality
Mammalia
 Soricomorpha - Talpidae
? Talpidae indet. Fischer de Waldheim 1817 mole
 Soricomorpha - Soricidae
Domnina sp. Cope 1873 shrew
 Artiodactyla - Leptomerycidae
Leptomeryx sp.3 Leidy 1853 ruminant
 Artiodactyla - Merycoidodontidae
"Hadroleptauchenia shanafeltae" = Leptauchenia major
"Hadroleptauchenia shanafeltae" = Leptauchenia major Leidy 1856 oreodont
"channel deposits capping 'Leptauchenia beds' at Cedar Pass"; also "near Cedar Pass"; may include their "Pseudocyclopidius" major from "lower Gering" equivalent "1/4 to 1 mile east of Cedar Pass"
 Artiodactyla - Entelodontidae
Dinohyus sp. Peterson 1905 even-toed ungulate
 Carnivora - Nimravidae
"Ekgmoiteptecela olsontau" = Hoplophoneus cerebralis
"Ekgmoiteptecela olsontau" = Hoplophoneus cerebralis Cope 1880 false sabre-tooth
as "Eusmilus olsontau"
 Rodentia - Castoridae
Palaeocastor sp.3 Leidy 1869 beaver
 Rodentia -
Geomyoidea indet.1 Bonaparte 1845 rodent
 Rodentia - Eomyidae
Eomyidae indet.2 Winge 1887 rodent
"Plesiosminthus"; misidentification also noted by Martin 1974
 Rodentia - Florentiamyidae
Hitonkala andersontau Macdonald 1963 rodent
 Rodentia - Sciuridae
Nototamias sp. Pratt and Morgan 1989 squirrel
"Tamias": probably the same as "Tamias" from Godsell Ranch Channel, referred to Nototamias by Korth 1992a