Rizzi Ranch ( of the United States)

Where: Elko County, Nevada (41.0° N, 115.5° W: paleocoordinates 42.2° N, 110.0° W)

• coordinate based on political unit

When: Arikareean (30.8 - 20.4 Ma)

Environment/lithology: terrestrial

Primary reference: C. A. Repenning. 1966. United States Geological Survey Professional Paper 550A [J. Alroy/J. Alroy]more details

PaleoDB collection 17600: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• said by Tedford et al. 1987 to be early Arikareean
Mammalia
 Rodentia - Cricetidae
cf. Paciculus sp. Cope 1879 mouse
 Rodentia - Aplodontidae
Meniscomys hippodus Cope 1878 mountain beaver
 Rodentia - Castoridae
Capacikala gradatus Cope 1878 beaver
 Perissodactyla - Rhinocerotidae
cf. Diceratherium sp. Marsh 1875 rhinoceros
 Carnivora - Canidae
Canidae indet. Fischer 1817 canid