Long Quarry (Miocene of the United States)

Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.1° N, 99.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Member (Sheep Creek Formation), Hemingfordian (20.4 - 16.0 Ma)

Environment/lithology: terrestrial

Primary reference: M. F. Skinner, S. M. Skinner, and R. J. Gooris. 1977. Stratigraphy and biostratigraphy of late Cenozoic deposits in central Sioux County, western Nebraska. Bulletin of the American Museum of Natural History 158(5):263-370 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 17961: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Perissodactyla - Equidae
Acritohippus tertius5, Archaeohippus penultimus
Acritohippus tertius5 Osborn 1918 horse
Supplemental Table S1
Archaeohippus penultimus Matthew 1924 anchitheriine horse
 Perissodactyla - Rhinocerotidae
Teleoceras americanum6, Aphelops megalodus6
Teleoceras americanum6 Yatkola and Tanner 1979 rhinoceros
Aphelops megalodus6 Cope 1873 rhinoceros
 Perissodactyla - Chalicotheriidae
Tylocephalonyx skinneri1
Tylocephalonyx skinneri1 Coombs 1979 chalicothere
no chalicotheres mentioned by Skinner et al.
 Artiodactyla - Antilocapridae
Merycodus sabulonis, "Cosoryx wilsoni n. sp." = Cosoryx (Paracosoryx) wilsoni7
Merycodus sabulonis Matthew and Cook 1909 pronghorn
"Cosoryx wilsoni n. sp." = Cosoryx (Paracosoryx) wilsoni7 Frick 1937 pronghorn
 Artiodactyla - Palaeomerycidae
Sinclairomeryx riparius2, "Dromomeryx scotti" = Subdromomeryx antilopinus2, Bouromeryx americanus4
Sinclairomeryx riparius2 Matthew 1924 ruminant
see also Stirton 1944
"Dromomeryx scotti" = Subdromomeryx antilopinus2 Scott 1893 ruminant
see also Stirton 1944
Bouromeryx americanus4 Douglass 1899 ruminant
 Artiodactyla - Merycoidodontidae
"Brachycrus wilsoni" = Brachycrus laticeps, Merychyus relictus
"Brachycrus wilsoni" = Brachycrus laticeps Douglass 1900 oreodont
includes type of "Brachycrus wilsoni longensis": see Schultz and Falkenbach 1940
Merychyus relictus Matthew and Cook 1909 oreodont
includes type of "Merychyus relictus taylori": see Schultz and Falkenbach 1947
 Carnivora - Amphicyonidae
Amphicyon sp.3, Cynelos sp.3, Pliocyon sp.3
Amphicyon sp.3 Lartet 1836 bear-dog
Cynelos sp.3 Jourdan 1862 bear-dog
Pliocyon sp.3 Matthew 1918 bear-dog
 Carnivora - Canidae
Osbornodon fricki8, Protomarctus optatus9, Cynarctoides acridens9
Osbornodon fricki8 Wang 1994 canid
Protomarctus optatus9 Matthew 1924 bone-crushing dog
Cynarctoides acridens9 Barbour and Cook 1914 bone-crushing dog
1Coombs 1979; 2Frick 1937; 3Hunt 1998; 4Liter and Prothero 2003; 5Mihlbachler et al. 2011; 6Prothero 2005; 7Skinner and Taylor 1967; 8Wang 1994; 9Wang et al. 1999