Pepper Creek (Miocene of the United States)

Also known as Site 2 Prospect

Where: Dawes County, Nebraska (42.8° N, 103.1° W: paleocoordinates 43.5° N, 99.2° W)

• coordinate based on political unit

When: Hemingfordian (20.4 - 16.0 Ma)

Environment/lithology: terrestrial

Primary reference: W. W. Korth. 1997. A new subfamily of primitive pocket mice (Rodentia, Heteromyidae) from the middle Tertiary of North America. Paludicola 1(2):33-66 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17979: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Heteromyidae
Peridiomys rusticus Matthew 1924 rodent
"Sand Canyon Beds... NW 1/4, sec. 18, T29N, R47W, Dawes County"; this is not at Sand Canyon Quarry but instead at about the midpoint of Pepper Creek; if correct, this is from a unit overlying the Box Butte Fm. relevant: Metatomarctus canavus Wang et al. 1999: said to be the Runningwater Formation
 Perissodactyla - Chalicotheriidae
Tylocephalonyx skinneri2 Coombs 1979 chalicothere
"post-Runningwater, pre-Sheep Creek equivalent beds at Site 2 Prospect, Pepper Creek"; this tends to imply the Box Butte Fm.
 Carnivora - Canidae
Tomarctus hippophaga4 Matthew and Cook 1909 bone-crushing dog
"Sand Canyon Formation... School House Prospect, Pepper Creek"
 Ungulata - Merycoidodontidae
Ticholeptus zygomaticus1 Cope 1878 oreodont
Merychyus relictus3 Matthew and Cook 1909 oreodont