Midway Quarry (Miocene of the United States)

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: Burge Member (Valentine Formation), Clarendonian (13.6 - 10.3 Ma)

Environment/lithology: terrestrial

Primary reference: W. W. Korth. 2000. Review of Miocene (Hemingfordian to Clarendonian) mylagaulid rodents (Mammalia) from Nebraska. Annals of Carnegie Museum 69(4):227-280 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 18260: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• 737 F:AM specimens: Skinner and Johnson 1984
Mammalia
 Rodentia - Mylagaulidae
Ceratogaulus cf. rhinocerus Matthew 1902 rodent
 Perissodactyla - Rhinocerotidae
Teleoceras medicornutum7 Osborn 1904 rhinoceros
 Perissodactyla - Equidae
Merychippus coloradense6 Osborn 1918 horse
Supplemental Table S1
Hippotherium sp.1 Kaup 1832 hipparionine horse
Cormohipparion merriami10 Woodburne 2007 hipparionine horse
Pseudhipparion retrusum4 Cope 1889 hipparionine horse
pers. commun.
Pliohippus pernix4 Marsh 1874 horse
pers. commun.
Protohippus supremus3 Leidy 1869 horse
 Carnivora - Amphicyonidae
Pseudocyon sp.5 Lartet 1851 bear-dog
"Midway Quarry zone"
 Carnivora - Canidae
Leptocyon vafer8 Leidy 1858 canine
Cynarctus voorhiesi9 Wang et al. 1999 bone-crushing dog
Aelurodon ferox9 Leidy 1858 bone-crushing dog
Carpocyon webbi n. sp.9 Wang et al. 1999 bone-crushing dog
 Ungulata - Merycoidodontidae
"Merychyus medius" = Ustatochoerus medius1
"Merychyus medius" = Ustatochoerus medius1 Leidy 1858 oreodont
 Ungulata - Palaeomerycidae
Cranioceras unicornis1 Matthew 1918 ruminant
 Ungulata - Antilocapridae
Cosoryx furcatus2 Leidy 1869 pronghorn
 Ungulata - Moschidae
Blastomeryx gemmifer2 Cope 1874 musk deer