Peanut Peak Microfauna: Chadronian, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Passeriformes
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Passeriformes indet.
Linnaeus 1758
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Reptilia
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Peltosaurus sp.
Cope 1873
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Mammalia
- Didelphimorphia
- Didelphidae
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Peratherium sp.
Aymard 1850
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= Didelphidae indet.
Gray 1821
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Alroy 2002 | |||||||||
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Mammalia
- Carnivora
- Canidae
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Hesperocyon gregarius
(Cope 1873)
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Mammalia
- Micropternodontidae
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Clinopternodus gracilis
(Clark 1936)
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Mammalia
- Oligoryctidae
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Apternodus altitalonidus
Clark 1936
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= Oligoryctes altitalonidus
Clark 1936
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Alroy 2002 | |||||||||
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Mammalia
- Geolabididae
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Metacodon magnus
Clark 1936
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= Centetodon magnus
Clark 1936
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Alroy 2002 | |||||||||
| listed by Lillegraven et al. 1981 as C. "chadronensis," but this is the type locality of "M." magnus | ||||||||||
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Mammalia
- Rodentia
- Eomyidae
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Adjidaumo minutus
(Cope 1873)
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Paradjidaumo minor
(Douglass 1902)
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= Paradjidaumo trilophus
Cope 1873
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Alroy 2002 | |||||||||
| recombined as Adjidaumo trilophus | ||||||||||
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Mammalia
- Rodentia
- Eutypomyidae
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Eutypomys cf. thomsoni
Matthew 1905
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Mammalia
- Lagomorpha
- Leporidae
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Megalagus turgidus
(Cope 1873)
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Mammalia
- Leptictidae
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Ictops dakotensis
Leidy 1868
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= Leptictis dakotensis
Leidy 1868
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Alroy 2002 | |||||||||
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Mammalia
- Apatemyidae
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Sinclairella dakotensis
Jepsen 1934
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| 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
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
| Taxonomic list comments:from a single locality in Big Corral Draw | |
Metadata
| Database number: | 17007 | ||
| 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] |