Version 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: subcycle 3 Member (Olcott 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 18011: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

 Perissodactyla - Rhinocerotidae
Teleoceras medicornutum3 Osborn 1904 rhinoceros
Aphelops megalodus3 Cope 1873 rhinoceros
 Perissodactyla - Equidae
Acritohippus isonesus2 Cope 1889 horse
Supplemental Table S1
Desmatippus integer Matthew 1924 anchitheriine horse
Hypohippus sp.2 Leidy 1858 anchitheriine horse
Supplemental Table S1
 Carnivora - Canidae
Microtomarctus conferta4 Matthew 1918 bone-crushing dog
Tomarctus brevirostris4 Cope 1873 bone-crushing dog
 Ungulata - Merycoidodontidae
Ticholeptus zygomaticus1 Cope 1878 oreodont
Brachycrus siouense Sinclair 1915 oreodont
Merychyus relictus Matthew and Cook 1909 oreodont
see Schultz and Falkenbach 1947
 Ungulata - Protoceratidae
Lambdoceras siouxensis1 Frick 1937 protoceratid