Humbug 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: 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 17955: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Perissodactyla - Chalicotheriidae
Moropus merriami1 Holland and Peterson 1913 chalicothere
 Perissodactyla - Rhinocerotidae
Teleoceras medicornutum4 Osborn 1904 rhinoceros
Aphelops megalodus4 Cope 1873 rhinoceros
 Perissodactyla - Equidae
Scaphohippus intermontanus3 Merriam 1915 horse
Supplemental Table S1
Merychippus insignis3 Leidy 1856 horse
Supplemental Table S1
Neohipparion sp.3 Gidley 1903 hipparionine horse
Supplemental Table S1
Acritohippus isonesus3 Cope 1889 horse
Supplemental Table S1
Hypohippus sp.3 Leidy 1858 anchitheriine horse
Supplemental Table S1
 Carnivora - Amphicyonidae
Amphicyon sp.2 Lartet 1836 bear-dog
Pliocyon sp.2 Matthew 1918 bear-dog
 Carnivora - Canidae
Osbornodon fricki12 Wang 1994 canid
Leptocyon leidyi11 Tedford et al. 2009 canine
Paracynarctus sinclairi13 Wang et al. 1999 bone-crushing dog
Psalidocyon marianae13 Wang et al. 1999 bone-crushing dog
Microtomarctus conferta13 Matthew 1918 bone-crushing dog
Euoplocyon brachygnathus13 Douglass 1903 bone-crushing dog
Cynarctoides acridens13 Barbour and Cook 1914 bone-crushing dog
Tomarctus brevirostris13 Cope 1873 bone-crushing dog
Tomarctus hippophaga13 Matthew and Cook 1909 bone-crushing dog
 Carnivora - Felidae
Pseudaelurus validus6 Rothwell 2001 cat
F:AM 61834, 61829
 Ungulata - Merycoidodontidae
Ticholeptus zygomaticus8 Cope 1878 oreodont
Brachycrus siouense7 Sinclair 1915 oreodont
Merychyus relictus9 Matthew and Cook 1909 oreodont
 Ungulata - Tayassuidae
Hesperhys vagrans5 Douglass 1903 peccary
 Ungulata - Leptomerycidae
Pseudoparablastomeryx scotti10 Frick 1937 ruminant