PBDB Collection

Tavenner Ranch 2 ( of the United States)

Also known as KU-Mt-21; Locality 1 of Wood and Konizeski 1965; MV-6550

Where: Powell County, Montana (46.4° N, 112.8° W)

• Paleocoordinates: 52.1° N, 101.0° W (Wright 2013)

• coordinate based on political unit

When: Upper Cabbage Patch Beds Member (Renova Formation), Arikareean (29.5 - 18.5 Ma)

Environment/lithology: terrestrial

Primary reference: T. H. V. Rich and D. L. Rasmussen. 1973. New North American erinaceine hedgehogs (Mammalia; Insectivora). Occasional Papers of the Museum of Natural History, University of Kansas 21:1-54 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17700: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC0 (CC0)

Taxonomic list

• said to be "medial Arikareean"
"Upper Cabbage Patch" list of Rasmussen 1989 matches this one quite well and I assume it pertains largely or perhaps entirely to Tavenner Ranch 2
this is NOT Locality 4 of Wood and Konizeski 1965; however, Wood and Konizeski Locality 5 is from the same horizon only a few hundred yards away, and lithology matches that given by Pierce and Rasmussen
"? Parasminthus sp." is not documented in North America, see Korth 1994c

Show authors, comments, and common names

Mammalia
Tribosphenida - Herpetotheriidae	"Herpetotheriinae indet." = Herpetotheriidae¹ "Herpetotheriinae indet." = Herpetotheriidae¹ Trouessart 1879 marsupial
Tribosphenida - Peradectidae	Nanodelphys sp. Nanodelphys sp. McGrew 1937 marsupial
Soricomorpha - Proscalopidae	Proscalops sp. Proscalops sp. Matthew 1901 placental
Soricomorpha - Soricidae	Domnina sp. Domnina sp. Cope 1873 shrew
Tribosphenida - Erinaceidae	Stenoechinus tantalus n. sp., Amphechinus horncloudi Stenoechinus tantalus n. sp. Rich and Rasmussen 1973 hedgehog Amphechinus horncloudi Macdonald 1970 hedgehog
Artiodactyla - Merycoidodontidae	Merycoidodontidae indet. Merycoidodontidae indet. Cook 1912 oreodont said to be indeterminate by Rasmussen 1989, although "Promerycochoerus montanus" was listed by Wood and Konizeski 1965
Artiodactyla - Leptomerycidae	Pronodens sp.² Pronodens sp.² Koerner 1940 ruminant
Perissodactyla - Equidae	Miohippus cf. gemmarosae³ Miohippus cf. gemmarosae³ Osborn 1918 anchitheriine horse
Carnivora - Canidae	Canidae indet.¹ Canidae indet.¹ Fischer de Waldheim 1817 canid
Rodentia - Zapodidae	Zapodidae indet.¹ Zapodidae indet.¹ Coues 1875 jumping mouse
Rodentia - Aplodontidae	Niglarodon sp., Meniscomys sp. Niglarodon sp. Black 1961 mountain beaver Meniscomys sp. Cope 1878 mountain beaver
Rodentia - Sciuridae	Sciuridae indet.² Sciuridae indet.² Gray 1821 squirrel
Rodentia - Cricetidae	Leidymys sp., Paciculus sp. Leidymys sp. Wood 1936 rodent Paciculus sp. Cope 1879 rodent
Rodentia - Eomyidae	Eomyidae indet.² Eomyidae indet.² Winge 1887 rodent
Rodentia - Geomyidae	? Tenudomys sp.² ? Tenudomys sp.² Rensberger 1973 pocket gopher may include "Mookomys sp."
Rodentia - Eutypomyidae	Eutypomys montanensis n. sp.³ Eutypomys montanensis n. sp.³ Wood and Konizeski 1965 rodent from "Locality 5"; not clear why Eutypomys is omitted by Rasmussen, as this i.d. is even repeated by Tedford et al. 1987; see above comments on localities
Rodentia - Castoridae	Castoridae indet.², ? Euhapsis sp.² Castoridae indet.² Gray 1821 beaver ? Euhapsis sp.² Peterson 1905 beaver
Rodentia - Entoptychidae	Gregorymys douglassi³ Gregorymys douglassi³ Wood 1936 rodent
Lagomorpha - Ochotonidae	? Gripholagomys sp.² ? Gripholagomys sp.² Green 1972 pika

¹Alroy 2002; ²Rasmussen 1989; ³Wood and Konizeski 1965