Oak Creek: Miocene, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Proboscidea
- Proboscidea
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Proboscidea indet.
Illiger 1811
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Teleoceras sp.
Hatcher 1894
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Mammalia
- Perissodactyla
- Equidae
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Hipparionini indet.
Quinn 1955
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| compared to "Hipparion" | ||||||||||
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Equini indet.
Quinn 1955
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| compared to "Protohippus" | ||||||||||
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Pliohippus lullianus n. sp.
Troxell 1916
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= Pliohippus pernix
Marsh 1874
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Alroy 2002 | |||||||||
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Mammalia
- Camelidae
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Camelidae indet.
Gray 1821
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Todd |
| Coordinates: | 43.2° North, 100.7° West (view map) | ||||
| Paleocoordinates: | 43.7° North, 97.6° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5-6 | ||
| *Period: | Tertiary | ||
| Key time interval: | Miocene | ||
| Age range of interval: | 23.03000 - 5.33300 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Taxonomic list comments:probably the modern town of Okreek, which is 16 mi E of Mission and also in Todd County not discussed by Macdonald 1960 or Green 1971 and in any event a different collection; treated as a separate locality by Tabrum 1981 a merycodont is reported from "an eight of a mile away and about seventy-five feet lower" specimen resembling "Protohippus placidus" found "Three miles from the main quarry" |
Metadata
| Database number: | 18297 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 1995-03-26 00:00:00 | Last modified: | 2002-06-03 03:27:42 |
| Access level: | the public | Released: | 1995-03-26 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 3446. | E. L. Troxell. 1916. An early Pliocene one-toed horse, Pliohippus lullianus sp. nov. American Journal of Science 42(250):335-348 [J. Alroy/J. Alroy/J. Ju] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] |