Machaerodus Quarry (Miocene of the United States)

Also known as Machairodus Quarry; Xmas Channel

Where: Cherry County, Nebraska (42.8° N, 100.8° W: paleocoordinates 43.3° N, 98.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Merritt Dam Member (Ash Hollow Formation), Clarendonian (12.5 - 9.4 Ma)

Environment/lithology: terrestrial

Primary reference: X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy]more details

PaleoDB collection 18245: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• underlies Machaerodus Ash, dated at 9.95 +/- 0.8 Ma FT on glass
185 F:AM specimens: Skinner and Johnson 1984
Show authors, comments, and common names
unclassified
  -
"Clarendonian peccary" sp.9, Antilocaprini indet.2
"Clarendonian peccary" sp.9
new species; see also Wright 1998
Antilocaprini indet.2
postcrania listed under "Plioceros floblairi"
Mammalia
 Perissodactyla - Equidae
Calippus cerasinus4, Neohipparion trampasense3, Pseudhipparion skinneri4, "Hippotherium occidentale" = Cormohipparion occidentale1, Cormohipparion matthewi8
Calippus cerasinus4 Hulbert 1988 horse
pers. commun.
Neohipparion trampasense3 Edwards 1982 hipparionine horse
Pseudhipparion skinneri4 Webb and Hulbert 1986 hipparionine horse
pers. commun.
"Hippotherium occidentale" = Cormohipparion occidentale1 Leidy 1856 hipparionine horse
JA pers. obs.
Cormohipparion matthewi8 Woodburne 2007 hipparionine horse
 Perissodactyla - Rhinocerotidae
Teleoceras major6, Aphelops megalodus6
Teleoceras major6 Hatcher 1894 rhinoceros
Aphelops megalodus6 Cope 1873 rhinoceros
 Artiodactyla - Gelocidae
Pseudoceras skinneri2
Pseudoceras skinneri2 Frick 1937 ruminant
 Artiodactyla - Moschidae
Parablastomeryx gregorii2
Parablastomeryx gregorii2 Frick 1937 musk deer
 Artiodactyla - Tayassuidae
Skinnerhyus shermerorum n. gen. n. sp.7
Skinnerhyus shermerorum n. gen. n. sp.7 Prothero and Pollen 2013 peccary
new species; see also Wright 1998
 Carnivora - Canidae
Epicyon saevus, Paratomarctus euthos, Aelurodon taxoides
Epicyon saevus Leidy 1858 bone-crushing dog
Paratomarctus euthos McGrew 1935 bone-crushing dog
Aelurodon taxoides Hatcher 1894 bone-crushing dog
 Rodentia - Castoridae
Prodipoides katensis5
Prodipoides katensis5 Korth 2002 beaver
"Machaeroides Quarry"
1Alroy 2002; 2Frick 1937; 3Hulbert 1987; 4Hulbert 1989; 5Korth 2007; 6Prothero 2005; 7Prothero and Pollen 2013; 8Woodburne 2007; 9Wright 1993