Dunlap Ranch Quarry (Oligocene of the United States)

Also known as Mo-155

Where: Morrill County, Nebraska (41.7° N, 103.1° W: paleocoordinates 42.5° N, 96.6° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Unit B Member (Gering Formation), Geringian (30.8 - 26.3 Ma)

Environment/lithology: terrestrial

Primary reference: C. C. Swisher. 1982. Stratigraphy and biostratigraphy of the eastern portion of the Wildcat Ridge, western Nebraska. 1-172 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17494: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by K. Christopher Beard

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Herpetotheriidae
Herpetotherium youngi1 McGrew 1937 marsupial
 Carnivora - Palaeogalidae
Palaeogale dorothiae Macdonald 1963 carnivoran
 Artiodactyla - Hypisodontidae
Hypisodus sp. Cope 1873 ruminant
 Artiodactyla - Hypertragulidae
Hypertragulus sp. Cope 1874 ruminant
may include type of "H. minutus" of Frick 1937 from "Bridgeport, Morrill County"
Nanotragulus cf. loomisi1 Lull 1922 ruminant
 Perissodactyla - Rhinocerotidae
Diceratherium cf. annectens Marsh 1873 rhinoceros
 Perissodactyla - Equidae
Miohippus cf. intermedius Osborn and Wortman 1895 anchitheriine horse
 Theriamorpha - Geolabididae
Centetodon magnus Clark 1936 placental
 Theriamorpha - Proscalopidae
Proscalops tertius Reed 1961 placental
 Lagomorpha - Leporidae
Palaeolagus hypsodus Schlaikjer 1935 rabbit
Palaeolagus philoi Dawson 1958 rabbit
 Rodentia - Heteromyidae
Proheteromys ironcloudi Macdonald 1963 rodent
"Proheteromys fedti" = Proharrymys fedti Macdonald 1963 rodent
 Rodentia - Castoridae
Palaeocastor sp.1 Leidy 1869 beaver
 Rodentia - Cricetidae
Leidymys blacki Macdonald 1963 mouse
Geringia mcgregori Macdonald 1970 mouse
"C"
 Primates - Ekgmowechashalidae
Ekgmowechashala philotau2 Macdonald 1963 primate