Redington Gap West (Basal Siltstone): Arikareean, Nebraska

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Carnivora - Canidae
Archaeocyon leptodus (Schlaikjer 1935)
Wang et al. 1999
"Horn Member... Redington Gap area (UNSM loc. Mo-108... 92 ft above the base of upper Whitney ash and 5 ft below... Gering"; also specimens from 10, 13, 30 - 40, and 50 ft above base of member, and from N of Redington Gap, 30 - 40 ft above base
Cynodesmus martini n. sp. Wang 1994
Wang 1994
1 mi W of Redington Gap, N of "an abandoned concrete house" 30 - 40 ft above Brule
Mesocyon geringensis n. sp. Barbour and Schultz 1935
recombined as Sunkahetanka geringensis
Mammalia - Merycoidodontidae
Pseudocyclopidius major (Leidy 1856)
original and current combination Leptauchenia major
Pithecistes mariae Schultz and Falkenbach 1968
    = Leptauchenia decora Leidy 1856
Schultz and Falkenbach 1968
lower Gering, "1 1/4 mi. W. and 1 1/2 mi. N. of Redington"; also their "L. martini" UNSM Mo-108 lower Gering
Sespia marianae n. sp. Schultz and Falkenbach 1968
synonym of Sespia nitida
Mammalia - Rodentia - Sciuridae
Cedromus savannae Hayes 2007
Hayes 2007
re-identification of Cedromus sp.
Mammalia - Rodentia - Castoridae
Palaeocastor nebrascensis (Leidy 1856)
    = Palaeocastor sp. Leidy 1869
Alroy 2002
see Xu 1996
Mammalia - Rodentia - Cricetidae
Paciculus nebraskensis n. sp. Alker 1969
Alker 1969 1 specimen
UNSM Mo-108, "0-10 feet above the Brule Gering contact"
see common names

Geography
Country:United States State/province:Nebraska County:Morrill
Coordinates: 41.7° North, 103.1° West (view map)
Paleocoordinates:42.6° North, 97.3° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
*Period:Tertiary *Epoch:Oligocene
Key time interval:Arikareean
Age range of interval:30.80000 - 20.43000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Brule Member:Brown Siltstone
Local section:NPlat Local bed:5
Local order:bottom to top
Stratigraphy comments: Unit A
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Museum repositories:UNSM
Taxonomic list comments:a.k.a. Horn Member of the Brule Formation
note that Gering A is at least 50 ft thick
"Mesoreodon chelonyx" Stevens and Stevens 1996: "brown siltstone member" 1/4 mi W of Redington Gap Road, Morrill Co.
Metadata
Also known as:UNSM Mo-108
Database number:17598
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Research group:vertebrate
Created:1994-04-30 00:00:00 Last modified:2002-06-03 03:27:42
Access level:the public Released:1994-04-30 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

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]

Secondary references:

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]
6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1007 E. H. Barbour and C. B. Schultz. 1935. A new Miocene dog, Mesocyon geringensis, sp. nov. Bulletin of the Nebraska State Museum 43(1):407-418 [J. Alroy/J. Alroy/J. Alroy]
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]
3069 C. B. Schultz and C. H. Falkenbach. 1968. The Phylogeny of the Oreodonts. Part 1: Merycoidodontinae, Eporeodontinae, and Leptaucheniinae, Three Subfamilies Of Oreodonts, With an Appendix to the Revision Of The Merycoidodontidae, and Part 2. Summary and Conclusions Concerning the Merycoidodontidae. Bulletin of the American Museum of Natural History 139:1-498 [J. Alroy/J. Alroy/J. Marcot]
6226 X. Wang. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 221:1-207 [J. Alroy/J. Alroy/J. Alroy]
3558 X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy]