Harris Ranch Unit A: Orellan, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Perissodactyla
- Equidae
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Miohippus bairdii
(Leidy 1850)
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| recombined as Mesohippus bairdi | ||||||||||
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Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodon nebraskensis
(Leidy 1850)
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| probably OK because Harris Ranch H. leidyanus material of Prothero 1996e is implicitly only from the Whitney | ||||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Rhinocerotidae indet.
Gray 1821
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Mammalia
- Hypertragulidae
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Hypertragulus cf. calcaratus
(Cope 1873)
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Mammalia
- Leptomerycidae
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Leptomeryx evansi
Leidy 1853
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Mammalia
- Camelidae
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Poebrotherium cf. labiatum
Cope 1881
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| recombined as Paratylopus labiatus | ||||||||||
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Mammalia
- Merycoidodontidae
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Platyochoerus platycephalus
(Thorpe 1921)
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= Miniochoerus affinis
Leidy 1869
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Schultz and Falkenbach 1956 | |||||||||
| "Brule Zone A" (clearly equivalent to Unit A), "5 mi. N.W. of Slim Butte" | ||||||||||
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? Merycoidodon cf. bullatus
(Leidy 1869)
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Mammalia
- Creodonta
- Hyaenodontidae
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? Hyaenodontidae indet.
Leidy 1869
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Mammalia
- Geolabididae
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Centetodon wolffi
(Macdonald 1965)
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Mammalia
- Lagomorpha
- Leporidae
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Megalagus turgidus
(Cope 1873)
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Palaeolagus burkei
Schlaikjer 1935
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Palaeolagus haydeni
Leidy 1856
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Mammalia
- Rodentia
- Ischyromyidae
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Ischyromys pliacus
Troxell 1922
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| synonym of Ischyromys typus | ||||||||||
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Mammalia
- Rodentia
- Castoridae
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Eutypomys magnus
Wood 1937
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| recombined as Oligotheriomys magnus | ||||||||||
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Mammalia
- Rodentia
- Cricetidae
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Eumys sp.
Leidy 1856
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Eumys elegans
Leidy 1856
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Fall River |
| Coordinates: | 43.2° North, 103.2° West (view map) | ||||
| Paleocoordinates: | 44.4° 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: | Orellan | ||
| Age range of interval: | 33.90000 - 31.80000 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:not clear what "? Miohippus sp." is |
Metadata
| Database number: | 17115 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 1993-02-18 00:00:00 | Last modified: | 2002-06-03 03:27:41 |
| Access level: | the public | Released: | 1993-02-18 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 3163. | W. F. Simpson. 1985. Geology and paleontology of the Oligocene Harris Ranch Badlands, southwestern South Dakota. Dakoterra 2(2):303-333 [J. Alroy/J. Alroy/J. Marcot] |
Secondary references:
| 6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
| 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] |