Hazard Homestead Quarry (Miocene of the United States)

Also known as UNSM Hk-104

Where: Hitchcock County, Nebraska (40.2° N, 101.1° W: paleocoordinates 40.8° N, 97.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Barstovian (16.0 - 13.6 Ma)

Environment/lithology: terrestrial

Size class: macrofossils

Reposited in the UNSM

Primary reference: M. R. Voorhies. 1990. Vertebrate biostratigraphy of the Ogallala Group in Nebraska. In T. C. Gustavson (ed.), Geologic Framework and Regional Hydrology: Upper Cenozoic Blackwater Draw and Ogallala Formations, Great Plains 115-151 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 18192: authorized by John Alroy, entered by John Alroy on 05.08.1992

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Proboscidea - Gomphotheriidae
"Gomphotherium cf. willistoni" = Trilophodon osborni1
"Gomphotherium cf. willistoni" = Trilophodon osborni1 Barbour 1916 gomphothere
 Proboscidea - Mammutidae
Zygolophodon sp. Vacek 1877 mastodon
 Theriamorpha - Erinaceidae
Metechinus amplior Rich 1981 hedgehog
 Perissodactyla - Rhinocerotidae
"Teleoceras minor" = Teleoceras meridianum5 Leidy 1865 rhinoceros
Peraceras cf. superciliosum1 Cope 1880 rhinoceros
Aphelops sp. Owen 1845 rhinoceros
 Perissodactyla - Equidae
Merychippus cf. insignis Leidy 1856 horse
"Merychippus" republicanus Osborn 1918 horse
matches for the types of republicanus and patruus are mentioned by Voorhies as having been found; patruus is a probable junior synonym of republicanus, JA pers. obs. 20 Feb 1991
Calippus placidus Leidy 1869 horse
Protohippus perditus Leidy 1858 horse
Pliohippus sp. Marsh 1874 horse
seems OK
Hypohippus osborni Gidley 1907 anchitheriine horse
 Artiodactyla - Tayassuidae
"Prosthennops xiphodonticus" = Stirtonhyus xiphodonticus1
"Prosthennops xiphodonticus" = Stirtonhyus xiphodonticus1 Barbour 1925 peccary
 Artiodactyla - Camelidae
Protolabis cf. gracilis Leidy 1858 camel
apparently includes "P. inaequidens"; see Voorhies 1990
Nothotylopus sp. Patton 1969 camel
Procamelus occidentalis Leidy 1858 camel
Aepycamelus robustus Leidy 1858 camel
 Artiodactyla - Moschidae
Longirostromeryx sp. Frick 1937 musk deer
 Artiodactyla - Antilocapridae
Merycodontinae indet.1 Matthew 1904 pronghorn
Ramoceros cf. osborni Matthew 1904 pronghorn
may include "R. hitchcockensis" type of Frick 1937 from "Burroak Creek (a side branch of Driftwood Creek), Hitchcock County" and referred specimen from "Hazard Collection"
 Artiodactyla - Palaeomerycidae
Procranioceras skinneri1 Frick 1937 ruminant
 Artiodactyla - Protoceratidae
Prosynthetoceras sp. Frick 1937 protoceratid
 Artiodactyla - Merycoidodontidae
"Merychyus medius" = Ustatochoerus medius1
"Merychyus medius" = Ustatochoerus medius1 Leidy 1858 oreodont
 Carnivora - Amphicyonidae
Pseudocyon sp.3 Lartet 1851 bear-dog
 Carnivora - Mustelidae
Mustelidae indet.1 Fischer 1817 mustelid carnivore
 Carnivora - Canidae
Aelurodon ferox Leidy 1858 bone-crushing dog
confirmed by Wang et al. 1999, who also list older AMNH specimens of A. asthenostylus, Epicyon saevus, and E. haydeni from "Driftwood Creek" and a new specimen of A. taxoides from "Driftwood Creek"
Carpocyon compressus1 Cope 1890 bone-crushing dog
Paratomarctus temerarius1 Leidy 1858 bone-crushing dog
Leptocyon vafer Leidy 1858 canine
 Rodentia - Heteromyidae
Cupidinimus nebraskensis Wood 1935 rodent
 Rodentia - Mylagaulidae
Umbogaulus monodon n. sp.4 Cope 1881 rodent
of Cope 1881 "Mylagaulus sp."
 Lagomorpha - Leporidae
Hypolagus parviplicatus Dawson 1958 rabbit
Reptilia
 Squamata - Colubridae
Coluber constrictor2 Linnaeus 1758 black racer
AMNH specimen (apparently of Cope's) from "Driftwood Creek, Hitchock County"