Tavenner Ranch 2: Arikareean, Montana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Carnivora - Canidae
Nothocyon sp. Wortman and Matthew 1899
    = Canidae indet. Fischer de Waldheim 1817
Alroy 2002
indeterminate canid is listed instead by Rasmussen 1989
Mammalia - Perissodactyla - Equidae
Miohippus sp. Marsh 1874
    = Miohippus cf. gemmarosae Osborn 1918
Wood and Konizeski 1965
replaces ID of Rasmussen 1989; no equids are listed by Rich and Rasmussen
Mammalia - Merycoidodontidae
Merycoidodontidae indet. Cook 1912
said to be indeterminate by Rasmussen 1989, although "Promerycochoerus montanus" was listed by Wood and Konizeski 1965
Mammalia - Leptomerycidae
Leptomeryx sp. Leidy 1853
    = Pronodens sp. Koerner 1940
Rasmussen 1989
Mammalia - Proscalopidae
Proscalops sp. Matthew 1901
Mammalia - Soricidae
Domnina sp. Cope 1873
Mammalia - Erinaceidae
Stenoechinus tantalus n. sp. Rich and Rasmussen 1973
Amphechinus horncloudi (Macdonald 1970)
Mammalia - Lagomorpha - Ochotonidae
Archaeolagus sp. Dice 1917
    = ? Gripholagomys sp. Green 1972
Rasmussen 1989
Mammalia - Rodentia - Zapodidae
Plesiosminthus sp. Viret 1926
    = Zapodidae indet. Coues 1875
Alroy 2002
Mammalia - Rodentia - Cricetidae
Leidymys sp. Wood 1936
Paciculus sp. Cope 1879
Mammalia - Rodentia - Entoptychidae
Gregorymys sp. Wood 1936
    = Gregorymys douglassi Wood 1936
Wood and Konizeski 1965
Mammalia - Rodentia - Aplodontidae
Meniscomys sp. Cope 1878
Niglarodon sp. Black 1961
Mammalia - Rodentia - Sciuridae
Sciuridae indet. Gray 1821
Rasmussen 1989
Mammalia - Rodentia - Castoridae
Monosaulax sp. Stirton 1935
    = Castoridae indet. Gray 1821
Rasmussen 1989
Palaeocastor sp. Leidy 1869
    = ? Euhapsis sp. Peterson 1905
Rasmussen 1989
Mammalia - Rodentia - Eutypomyidae
Eutypomys montanensis n. sp. Wood and Konizeski 1965
Wood and Konizeski 1965
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 (3 measurements)
Mammalia - Rodentia - Geomyidae
? Tenudomys sp. Rensberger 1973
Rasmussen 1989
may include "Mookomys sp."
Mammalia - Rodentia - Eomyidae
Eomyidae indet. Winge 1887
Rasmussen 1989
Mammalia
Nanodelphys sp. McGrew 1937
Peratherium sp. Aymard 1850
    = Herpetotheriinae indet. Trouessart 1879
Alroy 2002
spelled with current rank as Herpetotheriidae
see common names

Geography
Country:United States State/province:Montana County:Powell
Coordinates: 46.4° North, 112.8° West (view map)
Paleocoordinates:47.5° North, 106.9° West
Basis of coordinate:based on political unit
Time
10 m.y. bin:Cenozoic 4-5
*Period:Tertiary *Epoch:Oligocene
Key time interval:Arikareean
Age range of interval:29.50000 - 18.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Renova Member:Upper Cabbage Patch Beds
Local section:CabbP Local bed:3
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:taxonomic analysis
Taxonomic list comments: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
Metadata
Also known as:KU-Mt-21; Locality 1 of Wood and Konizeski 1965; MV-6550
Database number:17700
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2006-09-13 00:40:40
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
2898. 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]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
2831 D. L. Rasmussen. 1989. Depositional Environments, Paleoecology, and Biostratigraphy of Arikareean Bozeman Group Strata West of the Continental Divide in Montana. Montana Geological Society 1989 Field Conference Guidebook 1:205-215 [J. Alroy/J. Alroy/J. Marcot]
6260 A. E. Wood and R. L. Konizeski. 1965. A new eutypomyid rodent from the Arikareean (Miocene) of Montana. Journal of Paleontology 39(3):492-496 [J. Alroy/J. Alroy/J. Alroy]