Oreodon Layer (1892 AMNH Collection): Orellan, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Carnivora
- Nimravidae
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Hoplophoneus occidentalis
(Leidy 1866)
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Hoplophoneus primaevus
(Leidy and Owen 1851)
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Mammalia
- Carnivora
- Amphicyonidae
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Daphoenus sp.
Leidy 1853
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Mammalia
- Creodonta
- Hyaenodontidae
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Hyaenodon crucians
Leidy 1853
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| includes type of "H. paucidens" | ||||||||||
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Hyaenodon horridus
Leidy 1853
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| includes "H. cruentus" | ||||||||||
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Mammalia
- Entelodontidae
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Elotherium mortoni
(Leidy 1850)
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| original and current combination Archaeotherium mortoni | ||||||||||
| may include "Elotherium imperator" | ||||||||||
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Mammalia
- Anthracotheriidae
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Hyopotamus americanus
Leidy 1856
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| recombined as Aepinacodon americanus | ||||||||||
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Anthracotherium occidentale
Osborn and Wortman 1894
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| recombined as Heptacodon occidentale | ||||||||||
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Mammalia
- Camelidae
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Poebrotherium wilsoni
Leidy 1847
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Mammalia
- Merycoidodontidae
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Miniochoerus affinis
(Leidy 1869)
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Schultz and Falkenbach 1956 | |||||||||
| figured specimen of "Oreodon gracile"; no evidence that M. gracilis is present in this collection | ||||||||||
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Oreodon culbertsoni
(Leidy 1848)
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| original and current combination Merycoidodon culbertsonii | ||||||||||
| confirmed by Schultz and Falkenbach 1968, who assign some material to "M. cuilbertsoni osborni" | ||||||||||
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Mammalia
- Leptomerycidae
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Leptomeryx evansi
Leidy 1853
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| see also Frick 1937 | ||||||||||
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Mammalia
- Hypertragulidae
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Hypertragulus calcaratus
(Cope 1873)
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Frick 1937 | |||||||||
| 1892 collection from "Lower Oreodon Beds, Cheyenne River" | ||||||||||
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Mammalia
- Perissodactyla
- Tapiridae
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Colodon luxatus
Marsh 1890
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| synonym of Colodon occidentalis | ||||||||||
| occidentalis is listed instead by Osborn and Wortman 1895 without comment, presumably indicating agreement with Wortman and Earle 1893 | ||||||||||
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Protapirus simplex n. sp.
Wortman and Earle 1893
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Wortman and Earle 1893 | |||||||||
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Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodon sp.
Leidy 1856
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Aceratherium mite
Cope 1875
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| recombined as Subhyracodon mitis | ||||||||||
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Aceratherium occidentale
(Leidy 1850)
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| recombined as Subhyracodon occidentalis | ||||||||||
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Mammalia
- Perissodactyla
- Equidae
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Mesohippus bairdi
(Leidy 1850)
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Mammalia
- Lagomorpha
- Leporidae
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Palaeolagus haydeni
Leidy 1856
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Mammalia
- Rodentia
- Ischyromyidae
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Ischyromys sp.
Leidy 1856
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Pennington and Scenic |
| Coordinates: | 43.9° North, 102.5° West (view map) | ||||
| Paleocoordinates: | 45.0° North, 94.3° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| *Period: | Tertiary | ||
| Key time interval: | Orellan | ||
| Age range of interval: | 33.90000 - 31.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Brule | Member: | lower Scenic |
| Local section: | BgBad | Local bed: | 4 |
| Local order: | bottom to top |
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Museum repositories: | AMNH |
| Taxonomic list comments:based on Osborn 1937, this is mostly from Indian Creek, Corral Draw, and Quinn Draw | |
Metadata
| Database number: | 17153 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | 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:
| 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] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 6222 | C. Frick. 1937. Horned ruminants of North America. Bulletin of the American Museum of Natural History 69:1-669 [J. Alroy/J. Alroy/M. Uhen] | |
| 3068 | C. B. Schultz and C. H. Falkenbach. 1956. Miniochoerinae and Oreonetinae two new subfamilies of oreodonts. Bulletin of the American Museum of Natural History 109(4):373-482 [J. Alroy/J. Alroy/J. Marcot] | |
| 3772 | J. L. Wortman and C. Earle. 1893. Ancestors of the tapir from the lower Miocene of Dakota. Bulletin of the American Museum of Natural History 5(11):159-180 [J. Alroy/J. Alroy/M. Carrano] |