Penny Creek (UNSM Wt-12) (Miocene of the United States)

Where: Webster County, Nebraska (40.1° N, 98.5° W: paleocoordinates 40.5° N, 95.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Valentine Formation, Clarendonian (13.6 - 10.3 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: M. A. Turner. 1972. A faunal assemblage from the Lower Ash Hollow Formation (Neogene) of southern Nebraska. M. S. thesis University of Nebraska 1-88 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18315: authorized by John Alroy, entered by John Alroy on 19.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Heteromyidae
Heteromyidae indet. Gray 1868 rodent
 Rodentia - Castoridae
Eucastor sp. Allen 1877 beaver
 Rodentia - Mylagaulidae
Mylagaulidae indet.2 Cope 1881 rodent
 Perissodactyla - Rhinocerotidae
Teleoceras sp. Hatcher 1894 rhinoceros
Aphelops sp. Owen 1845 rhinoceros
 Perissodactyla - Tapiridae
Tapirus johnsoni3 Schultz et al. 1975 tapir
 Perissodactyla - Equidae
Pseudhipparion retrusum1 Cope 1889 hipparionine horse
Pliohippus sp. Marsh 1874 horse
may be OK as Turner lists perditus
Protohippus cf. perditus Leidy 1858 horse
Calippus regulus4 Johnston 1937 horse
Hypohippus cf. osborni Gidley 1907 anchitheriine horse
 Ferae -
Carnivora indet. Bowditch 1821 carnivoran
 Proboscidea - Gomphotheriidae
Gomphotheriidae indet. Hay 1922 gomphothere
 Ungulata - Merycoidodontidae
"Merychyus cf. novomexicanus" = Ustatochoerus medius novomexicanus1
"Merychyus cf. novomexicanus" = Ustatochoerus medius novomexicanus1 Frick 1929 oreodont
 Ungulata - Tayassuidae
Tayassuinae indet.1 Palmer 1897 peccary
 Ungulata - Camelidae
? Protolabis sp. Cope 1876 camel
 Ungulata - Protoceratidae
Synthetoceras tricornatus Stirton 1932 protoceratid
 Ungulata - Palaeomerycidae
Cranioceratini indet.1 Frick 1937 ruminant
 Ungulata - Antilocapridae
Merycodontinae indet.1 Matthew 1904 pronghorn