East of Rockyford (Protoceras Channels): Whitneyan, South Dakota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Rodentia - Castoridae
Agnotocastor praetereadens n. sp. Stirton 1935
Stirton 1935
from "Cheyenne River, White River formation, South Dakota"; referred specimens from "near Rockyford" mentioned by Xu 1996
Mammalia - Carnivora - Canidae
Oxetocyon cuspidatus n. sp. Green 1954
Green 1954
from "7 mi. E of Rockyford, Shannon Co."
Mammalia - Carnivora - Nimravidae
Nimravus altidens n. sp. Macdonald 1950
Macdonald 1950
    = Nimravus brachyops Cope 1878
Alroy 2002
from "7 mi. E of Rockyford, Shannon Co."
Mammalia - Perissodactyla - Tapiridae
Protapirus simplex Wortman and Earle 1893
Albright 1998
SDSM specimen from Protoceras sandstones 12 km (= 7 mi) E of Rockyford (5 measurements)
Mammalia - Merycoidodontidae
Pseudocyclopidius frankforteri Schultz and Falkenbach 1968
Schultz and Falkenbach 1968
    = Leptauchenia major Leidy 1856
Alroy 2002
"7 mi. E. of Rockyford" in Brule Zone D
Mammalia - Leptochoeridae
Leptochoerus supremus n. sp. Macdonald 1955
Macdonald 1955
from "7 mi. E of Rockyford, Shannon Co."
Mammalia - Erinaceidae
Apternodus bicuspis Macdonald 1951
Macdonald 1951
    = Proterix bicuspis Macdonald 1951
Alroy 2002
from "7 mi. E of Rockyford, Shannon Co."
Proterix loomisi Matthew 1903
from "7 mi. E of Rockyford, Shannon Co."
Reptilia - Gruiformes - Bathornithidae
Bathornis geographicus Wetmore 1942
Cracraft 1971 1 specimen
S.D.S.M. No. 40155
see common names

Geography
Country:United States State/province:South Dakota County:Shannon
Coordinates: 43.3° North, 102.5° West (view map)
Paleocoordinates:44.3° North, 95.0° West
Basis of coordinate:based on political unit
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
*Period:Tertiary
Key time interval:Whitneyan
Age range of interval:31.80000 - 29.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Brule Member:Poleslide
Local section:BgBad Local bed:8
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection excludes:some genera
Taxonomic list comments:possibly relevant: Merycoidodon bullatus - "Genetochoerus geygani" Schultz and Falkenbach 1968: "about five miles east of Rocky Ford Bridge" possibly in the "Upper Oreodon Zone"
Metadata
Database number:17329
Authorizer:J. Alroy, P. Holroyd Enterer:J. Alroy, P. Holroyd
Research group:vertebrate
Created:1995-10-18 00:00:00 Last modified:2002-06-03 03:27:42
Access level:the public Released:1995-10-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

1586. C. E. Gawne. 1968. The genus Proterix (Insectivora, Erinaceidae) of the Upper Oligocene of North America. American Museum Novitates 2315 [J. Alroy/J. Alroy/J. Ju]

Secondary references:

935 L. B. Albright. 1998. New genus of tapir (Mammalia: Tapiridae) from the Arikareean (earliest Miocene) of the Texas Coastal Plain. Journal of Vertebrate Paleontology 18(1):200-217 [J. Alroy/J. Alroy/P. Wagner]
6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
67262 J. Cracraft. 1971. Systematics and Evolution of the Gruiformes (Class Aves) 2. Additional Comments on the Bathornithidae, with descriptions of new species. American Museum Novitates (2449)1-13 [P. Holroyd/P. Holroyd]
1705 M. Green. 1954. A Cynarctine from the Upper Oligocene of South Dakota. Transactions of the Kansas Academy of Sciences 57(2):218-220 [J. Alroy/J. Alroy/M. Uhen]
2341 J. R. Macdonald. 1950. A new species of Nimravus from the upper Oligocene of South Dakota. Journal of Paleontology 24(5):601-603 [J. Alroy/J. Alroy/J. Marcot]
2342 J. R. Macdonald. 1951. Additions to the Whitneyan fauna of South Dakota. Journal of Paleontology 25(3):257-265 [J. Alroy/J. Alroy/M. Carrano]
2344 J. R. Macdonald. 1955. The Leptochoeridae. Journal of Paleontology 29(3):439-459 [J. Alroy/J. Alroy/M. Carrano]
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]
3230 R. A. Stirton. 1935. A review of the Tertiary beavers. University of California Publications, Bulletin of the Department of Geological Sciences 23(13):391-458 [J. Alroy/J. Alroy/M. Uhen]