Cedar Pass (SDSM V712): Whitneyan, South Dakota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Proscalopidae
Proscalops tertius Reed 1961
Bjork 1975
Mammalia - Rodentia - Florentiamyidae
Kirkomys martintau (Korth 2008)
Mammalia - Rodentia - Cricetidae
Leidymys cf. blacki (Macdonald 1963)
Leidymys juxtaparvulus Korth 2010
Scottimus lophatus Wood 1937
Eumys brachyodus Wood 1937
Paciculus cf. nebraskensis Alker 1969
Paciculus cedrus n. sp. Korth 2014
Mammalia - Rodentia
Epeiromys sp. Korth 1989
Mammalia - Rodentia - Aplodontidae
Disallomys robustus Korth 2009
Campestrallomys dawsonae (Macdonald 1963)
Mammalia - Rodentia - Sciuridae
Hesperopetes jamesi Emry and Korth 2007
Oligospermophilus sp. Korth 1987
Douglassciurus bjorki n. sp. Korth 2014
Mammalia - Rodentia - Castoridae
Palaeocastor wahlerti Korth 2001
Agnotocastor praetereadens Stirton 1935
Mammalia - Rodentia - Eutypomyidae
Eutypomys cf. wilsoni
Mammalia - Rodentia - Heteromyidae
Proharrymys wahlerti Korth and Branciforte 2007
Mammalia - Rodentia - Eomyidae
Eomyidae indet. Winge 1887
Paradjidaumo trilophus (Cope 1873)
recombined as Adjidaumo trilophus
Mammalia - Rodentia - Ischyromyidae
Ischyromys typus Leidy 1856
see common names

Geography
Country:United States State/province:South Dakota County:Jackson
Coordinates: 43.8° North, 101.9° West (view map)
Paleocoordinates:44.7° North, 94.3° West
Basis of coordinate:stated in text
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
Key time interval:Whitneyan
Age range of interval:31.80000 - 29.50000 m.y. ago
Stratigraphy
Formation:Brule Member:lower Poleslide
Stratigraphy comments: In this section, the fossils are derived from the Bjork siltstone beds (unit 8 of Evanoff et al. 2010:fig. 3; also see Evanoff et al. 2010 suppl.:fig 11b; Fig. 1). The age of the rocks and fauna are interpreted as early Whitneyan (middle Oligocene). The specimens were recovered from the lower part of the Poleslide Member, which contains a typical Whitneyan Fauna (as defined by Prothero and Emry 2004), and conformably overlies the Orellan Scenic Member of the Brule Formation (Evanoff et al. 2010).
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:some genera
Reason for describing collection:taxonomic analysis
Metadata
Database number:170168
Authorizer:J. Marcot, M. Uhen Enterer:J. Marcot, M. Uhen
Research group:vertebrate
Created:2015-06-15 19:37:42 Last modified:2015-06-15 19:37:42
Access level:the public Released:2015-06-15 19:37:42
Creative Commons license:CC BY
Reference information

Primary reference:
55534. W. W. Korth. 2014. Rodents (Mammalia) from the Whitneyan (Middle Oligocene) Cedar Pass Fauna of South Dakota. Annals of Carnegie Museum 82(4):373-398 [J. Marcot/J. Marcot]

Secondary references:

1072 P. R. Bjork. 1975. Observations on Proscalops tertius (Mammalia: Insectivora) of the Upper Oligocene of South Dakota. Journal of Paleontology 49(5) [J. Alroy/J. Alroy/J. Ju]