Hay Springs Fossil Quarry (UNSM Sd-1) (Pleistocene of the United States)

Also known as UNSM Sh-1

Where: Sheridan County, Nebraska (42.7° N, 102.5° W: paleocoordinates 42.7° N, 102.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Irvingtonian (1.8 - 0.3 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: R. A. Hintlian. 1975. University of Nebraska MS thesis [J. Alroy/J. Alroy]more details

PaleoDB collection 20375: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Microtus pennsylvanicus" is an intrusive: Kurten and Anderson 1980
 Rodentia - Cricetidae
Ondatra zibethicus1 Linnaeus 1766 muskrat
 Rodentia - Sciuridae
Cynomys niobrarius Hay 1921 prairie dog
OK according to Goodwin 1995b
 Rodentia - Geomyidae
Geomys bursarius Shaw 1800 plains pocket gopher
 Rodentia - Castoridae
Castoroides sp. Foster 1838 giant beaver
 Perissodactyla - Rhinocerotidae
Aphelops megalodus4 Cope 1873 rhinoceros
 Perissodactyla - Equidae
Equus sp.1 Linnaeus 1758 horse
Equus calobatus Troxell 1915 horse
 Carnivora - Canidae
Canis sp. Linnaeus 1758 canine
both C. latrans and C. lupus are present at "Hay Springs": Nowak 1979
 Carnivora - Felidae
Smilodon cf. fatalis2 Leidy 1868 saber-toothed cat
 Xenarthra - Mylodontidae
Paramylodon harlani3 Owen 1840 Harlan's ground sloth
 Proboscidea - Elephantidae
"Mammuthus imperator" = Mammuthus columbi
"Mammuthus imperator" = Mammuthus columbi Falconer 1857 imperial mammoth
 Ungulata - Camelidae
Camelops cf. hesternus Leidy 1873 camel
Hemiauchenia sp.1 Gervais and Ameghino 1880 camel
 Ungulata - Antilocapridae
? Capromeryx sp. Matthew 1902 pronghorn
may include type of C. furcifer from "Hay Springs": see Frick 1937