Durnal Ranch Quarry: Geringian, Nebraska

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Goinophis minusculus n. gen., n. sp. Holman 1976
Holman 1976 1 specimen
Reptilia - Boidae
Calamagras platyspondyla n. sp. Holman 1976
Holman 1976 2 specimens
Anilioides nebraskensis n. sp. Holman 1976
Holman 1976 1 specimen
Mammalia
Peratherium spindleri Macdonald 1963
Swisher 1982
synonym of Herpetotherium youngi
Nanodelphys sp. McGrew 1937
Swisher 1982
said to be new
Mammalia - Anthracotheriidae
? Elomeryx sp. Marsh 1894
Swisher 1982
Mammalia - Perissodactyla - Equidae
Miohippus cf. intermedius (Osborn and Wortman 1895)
Swisher 1982
Mammalia - Perissodactyla - Tapiridae
Miotapirus sp. Schlaikjer 1937
Swisher 1982
    = Tapiridae indet. Gray 1821
Alroy 2002
original and current combination Taperidae
not discussed by Albright 1998a
Mammalia - Perissodactyla - Rhinocerotidae
? Subhyracodon sp. Wood 1927
Swisher 1982
discussed by Tanner 1977
Mammalia - Proscalopidae
Proscalops tertius Reed 1961
Swisher 1982
Mammalia - Geolabididae
Centetodon magnus (Clark 1936)
Swisher 1982
discussed by Lillegraven et al. 1981
Mammalia - Soricidae
Domnina dakotensis Macdonald 1970
Swisher 1982
Mammalia - Erinaceidae
Proterix sp. Matthew 1903
Swisher 1982
Mammalia - Lagomorpha - Leporidae
Palaeolagus hypsodus Schlaikjer 1935
Swisher 1982
Palaeolagus philoi Dawson 1958
Swisher 1982
Mammalia - Rodentia - Geomyidae
Tenudomys titanus Martin 1974
Swisher 1982
Mammalia - Rodentia - Castoridae
Palaeocastor nebrascensis (Leidy 1856)
Swisher 1982
    = Palaeocastor sp. Leidy 1869
Alroy 2002
see Xu 1996
Mammalia - Rodentia - Cricetidae
Paciculus cf. insolitus Cope 1879
Leidymys blacki (Macdonald 1963)
Swisher 1982
Geringia mcgregori (Macdonald 1970)
Swisher 1982
"A": described by Martin 1980a
Mammalia - Rodentia - Zapodidae
Plesiosminthus geringensis Martin 1974
Swisher 1982
synonym of Schaubeumys clivosus
Mammalia - Rodentia - Aplodontidae
Aplodontidae indet. Brandt 1855
Swisher 1982
said to be new; same as Meniscomys new sp. of Martin 1973 and new aplodontid of Rasmussen 1977 Ph.D.; does not belong to Meniscomys
Prosciurus dawsonae Macdonald 1963
Swisher 1982
recombined as Campestrallomys dawsonae
Mammalia - Rodentia - Sciuridae
Cedromus savannae Hayes 2007
Hayes 2007
Mammalia - Primates - Ekgmowechashalidae
Ekgmowechashala philotau Macdonald 1963
Rust et al. 2023
see common names

Geography
Country:United States State/province:Nebraska County:Morrill
Coordinates: 41.7° North, 103.1° West (view map)
Paleocoordinates:42.5° North, 96.6° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Oligocene
10 m.y. bin:Cenozoic 4
*Period:Tertiary
Key time interval:Geringian
Age range of interval:29.50000 - 24.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Gering Member:Gering A
Local section:NPlat Local bed:5
Local order:bottom to top
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:UNSM
Metadata
Also known as:UNSM Mo-119
Database number:17495
Authorizer:J. Alroy, M. Carrano, J. Marcot, J. Head Enterer:J. Alroy, M. Carrano, J. Marcot, J. Head
Modifier:M. Carrano Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2020-02-24 16:51:00
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

945. J. Alker. 1969. Paciculus (Cricetinae, incertae sedis) teeth from the Miocene of Nebraska. Journal of Paleontology 43(1):171-174 [J. Alroy/J. Alroy/M. Carrano]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
51382 F. G. Hayes. 2007. Magnetostratigraphy and paleontology of Wagner Quarry, (late Oligocene, early Arikareean) basal Arikaree Group of the Pine Ridge region, Dawes County, Nebraska. Bulletin of the Florida Museum of Natural History 47(1):1-48 [J. Marcot/J. Marcot]
14759 J. A. Holman. 1976. Snakes from the Rosebud Formation (Middle Miocene) of South Dakota. Herpetologica 32:41-48 [J. Head/J. Head]
86473 K. Rust, X. Ni, K. Tietjen and K. C. Beard. 2023. Phylogeny and paleobiogeography of the enigmatic North American primate Ekgmowechashala illuminated by new fossils from Nebraska (USA) and Guangxi Zhuang Autonomous Region (China). Journal of Human Evolution [K. Beard/K. Beard]
3345 C. C. Swisher. 1982. Stratigraphy and biostratigraphy of the eastern portion of the Wildcat Ridge, western Nebraska. 1-172 [J. Alroy/J. Alroy/J. Marcot]