Peanut Peak: Chadronian, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Apternodontidae
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Apternodus mediaevus
Matthew 1903
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Mammalia
- Carnivora
- Amphicyonidae
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Daphoenus sp.
Leidy 1853
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Hunt 1998 | |||||||||
Daphoenocyon dodgei
(Scott 1898)
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recombined as Brachyrhynchocyon dodgei | ||||||||||
Mammalia
- Carnivora
- Ursidae
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Parictis major n. sp.
Clark and Guensburg 1972
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Clark and Guensburg 1972 | |||||||||
NE 1/4 SE 1/4 sec 12 T42N R45W Shannon Co.; placed in this mbr. by Baskin and Tedford 1996 | ||||||||||
Mammalia
- Carnivora
- Subparictidae
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Parictis dakotensis n. sp.
Clark 1936
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recombined as Subparictis dakotensis | ||||||||||
see Clark and Guensburg 1972: from "probably Peanut Peak Member, Big Corral Draw, Washington (now Shannon) County" | ||||||||||
Mammalia
- Carnivora
- Mustelidae
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Mustelavus priscus n. sp.
Clark 1936
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see also Baskin and Tedford 1996 | ||||||||||
Mammalia
- Carnivora
- Nimravidae
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Hoplophoneus oharrai n. sp.
Jepsen 1926
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(1 measurement) | ||||||||||
Dinictis fortis
Adams 1895
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= Dinictis felina
Leidy 1854
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Alroy 2002 | |||||||||
Mammalia
- Carnivora
- Canidae
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Hesperocyon gregarius
(Cope 1873)
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Mammalia
- Creodonta
- Hyaenodontidae
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Hyaenodon cf. montanus
Douglass 1902
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Hyaenodon cf. cruentus
Leidy 1853
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= Hyaenodon cf. horridus
Leidy 1853
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Alroy 2002 | |||||||||
Mammalia
- Merycoidodontidae
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Merycoidodon lewisi n. sp.
Clark and Beerbower 1967
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synonym of Merycoidodon culbertsonii | ||||||||||
Mammalia
- Hypertragulidae
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Hypertragulidae indet.
Cope 1879
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Mammalia
- Protoceratidae
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Poabromylus minor
Wilson 1974
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recombined as Pseudoprotoceras minor | ||||||||||
Leptotragulus profectus
Matthew 1903
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recombined as Trigenicus profectus | ||||||||||
(1 measurement) | ||||||||||
Mammalia
- Entelodontidae
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Archaeotherium scotti n. sp.
Sinclair 1922
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Mammalia
- Anthracotheriidae
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Aepinacodon americanus n. sp.
(Leidy 1856)
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Macdonald 1956 | |||||||||
this and the next record surely include "Bothriodon sp." because Clark would have followed Scott's taxonomy | ||||||||||
Aepinacodon deflectus n. sp.
(Marsh 1890)
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Macdonald 1956 | |||||||||
discussed by Troxell 1921a without indication of exact level | ||||||||||
Mammalia
- Camelidae
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Poebrotherium sp.
Leidy 1847
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Wilson 1974 | |||||||||
FMNH specimen from Shannon Co. | ||||||||||
Mammalia
- Perissodactyla
- Equidae
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Mesohippus grandis n. sp.
Clark and Beerbower 1967
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recombined as Miohippus grandis | ||||||||||
Mesohippus exoletus
(Cope 1874)
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Prothero and Shubin 1989 | |||||||||
5 ft below top of Chadron, Red Shirt Table, Shannon Co. | ||||||||||
Mesohippus celer
(Marsh 1874)
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(1 measurement) | ||||||||||
= Mesohippus bairdi
Leidy 1850
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Alroy 2002 | |||||||||
and "M. latidens"; Forsten 1970b places this at "W flank Quinn Draw"; "NE point of Finney Breaks, Custer Co."; Granath Quarry; and coordinates at Cottonwood Pass, S of Cottonwood Pass, and NW of Sheep Mountain Table | ||||||||||
Mammalia
- Perissodactyla
- Rhinocerotidae
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Trigonias wellsi n. sp.
Wood 1927
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Wood 1927 | |||||||||
from "Upper Titanotherium Beds, Corral Draw" | ||||||||||
Trigonias gregoryi n. sp.
Wood 1927
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synonym of Trigonias wellsi | ||||||||||
Aceratherium trigonodum n. sp.
Osborn and Wortman 1894
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synonym of Subhyracodon occidentalis | ||||||||||
(3 measurements) | ||||||||||
Caenopus mitis
(Cope 1875)
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recombined as Subhyracodon mitis | ||||||||||
Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodon cf. priscidens
Lambe 1905
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Mammalia
- Perissodactyla
- Brontotheriidae
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Menodus sp.
(Pomel 1848)
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= Brontotheriidae indet.
Marsh 1873
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Alroy 2002 | |||||||||
see Mader 1989 | ||||||||||
Megacerops marshi n. sp.
Osborn 1902
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recombined as Menops marshi | ||||||||||
Allops serotinus n. sp.
Marsh 1887
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recombined as Menops serotinus | ||||||||||
Brontotherium curtum
(Marsh 1887)
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recombined as Megacerops curtus | ||||||||||
Brontops robustus n. sp.
Marsh 1887
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Osborn 1929 | |||||||||
from "upper Titanotherium zone... Corral Draw"; also skeleton of "Titanotherium robustum" Osborn and Wortman 1895 from "upper Titanotherium beds... near the head of Corral Canon" | ||||||||||
Mammalia
- Leptictidae
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Ictops dakotensis
Leidy 1868
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recombined as Leptictis dakotensis | ||||||||||
see common names |
Geography
Country: | United States | State/province: | South Dakota | County: | Shannon |
Coordinates: | 43.3° North, 102.5° West (view map) | ||||
Paleocoordinates: | 44.6° North, 93.7° West | ||||
Basis of coordinate: | based on political unit |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
*Period: | Tertiary | ||
Key time interval: | Chadronian | ||
Age range of interval: | 37.00000 - 33.90000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Chadron | Member: | Peanut Peak |
Local section: | BgBad | 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: | paleoecologic analysis |
Taxonomic list comments:"upper Chadron" or "Upper Titanotherium Beds" records are retained here because the Peanut Peak is present wherever the lower members outcrop Wood 1927 mentions a specimen from "the Upper Tianotherium Beds, Cane Creek, South Dakota" that he compares to Amphicaenopus platycephalum |
Metadata
Database number: | 17006 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 1993-02-18 00:00:00 | Last modified: | 2006-09-13 00:29:51 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
1235. | ETE 10023 | J. Clark and J. R. Beerbower. 1967. Geology, paleoecology, and paleoclimatology of the Chadron Formation. Fieldiana 5(5):21-74 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
1238 | J. Clark and T. E. Guensburg. 1972. Arctoid genetic characters as related to the genus Parictis. Fieldiana 26(1):1-71 [J. Alroy/J. Alroy/J. Marcot] | |
1977 | R. M. Hunt, Jr. 1998. Amphicyonidae. 196-227 [J. Alroy/J. Alroy/J. Alroy] | |
2346 | J. R. Macdonald. 1956. The North American anthracotheres. Journal of Paleontology 30(3):615-645 [J. Alroy/J. Alroy/J. Alroy] | |
2698 | H. F. Osborn. 1902. The four phyla of Oligocene titanotheres. Bulletin of the American Museum of Natural History 16(8):91-109 [J. Alroy/J. Alroy/T. Liebrecht] | |
2708 | H. F. Osborn. 1929. New Eurasiatic and American proboscideans. American Museum Novitates 393:1-22 [J. Alroy/J. Alroy/M. Carrano] | |
2711 | H. F. Osborn and J. L. Wortman. 1894. Fossil mammals of the Lower Miocene White River beds. Collection of 1892. Bulletin of the American Museum of Natural History 6(7):199-228 [J. Alroy/J. Alroy/M. Carrano] | |
6273 | D. R. Prothero and N. Shubin. 1989. The evolution of Oligocene horses. In D. R. Prothero and R. M. Schoch (eds.), The Evolution of Perissodactyls 142-175 [J. Alroy/J. Alroy/J. Marcot] | |
3167 | W. J. Sinclair. 1922. Entelodonts from the Big Badlands of South Dakota in the geological museum of Princeton University. Proceedings of the American Philosophical Society 60:467-495 [J. Alroy/J. Alroy/J. Alroy] | |
3663 | J. A. Wilson. 1974. Early Tertiary Vertebrate Faunas, Vieja Group and Buck Hill Group, Trans-Pecos Texas: Protoceratidae, Camelidae, Hypertragulidae. Bulletin of the Texas Memorial Museum 23:1-24 [J. Alroy/J. Alroy/J. Marcot] | |
3741 | H. E. Wood. 1927. Some early Tertiary rhinoceroses and hyracodonts. Bulletins of American Paleontology 13(50):1-105 [J. Alroy/J. Alroy/J. Marcot] |