Palisade Cliffs (Oligocene of the United States)

Also known as MV 6009

Where: Jefferson County, Montana (46.0° N, 112.0° W: paleocoordinates 47.6° N, 103.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Dunbar Creek Member (Renova Formation), Orellan (33.9 - 33.3 Ma)

Environment/lithology: terrestrial

Primary reference: W. D. Kuenzi and R. W. Fields. 1971. Tertiary Stratigraphy, Structure, and Geologic History, Jefferson Basin, Montana. Geological Society America Bulletin 82(12):3373-3394 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17154: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Peratherium cf. titanelix" is omitted by Garcia 1990 pers. comm.

"? Ischryomys sp." is omitted by Garcia 1990 pers. comm.
Mammalia
 Rodentia - Cricetidae
Eumys elegans1 Leidy 1856 mouse
 Rodentia - Aplodontidae
"Prosciurus cf. relictus" = Altasciurus relictus
"Prosciurus cf. relictus" = Altasciurus relictus Cope 1873 mountain beaver
 Lagomorpha - Leporidae
Palaeolagus cf. burkei Wood 1940 rabbit
 Perissodactyla - Rhinocerotidae
Trigonias sp.2 Lucas 1900 rhinoceros
pers. comm.: "?Caenopus sp."
 Perissodactyla - Equidae
Mesohippus bairdi1 Leidy 1850 anchitheriine horse
 Theriiformes - Herpetotheriidae
"Herpetotherium cf. fugax" = Peratherium fugax1
"Herpetotherium cf. fugax" = Peratherium fugax1 Cope 1873 marsupial
 Artiodactyla - Merycoidodontidae
? Merycoidodontidae indet. Thorpe 1923 oreodont
 Artiodactyla - Agriochoeridae
? Agriochoeridae indet. Leidy 1869 agriochoerid
 Artiodactyla - Leptomerycidae
Leptomeryx evansi2 Leidy 1853 ruminant
pers. comm.: "L. transmontanus"