Douglass Creek Locality 3: Chadronian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Perissodactyla
- Equidae
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Mesohippus sp.
Marsh 1875
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= Equidae indet.
Gray 1821
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Alroy 2002 | |||||||||
| i.d. based on stratigraphy | ||||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Caenopus mitis
(Cope 1875)
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1 specimen | |||||||||
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= Subhyracodon cf. mitis
Cope 1875
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Alroy 2002 | |||||||||
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Mammalia
- Leptomerycidae
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Leptomeryx cf. evansi
Leidy 1853
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5 specimens | |||||||||
| including additional "Leptomeryx? sp.?" | ||||||||||
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Mammalia
- Agriochoeridae
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Agriochoerus sp.
Leidy 1850
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2 specimens | |||||||||
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Mammalia
- Carnivora
- Ursidae
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Parictis montanus
Clark and Guensburg 1972
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Clark and Guensburg 1972 | 1 specimen | ||||||||
| one of two "Hesperocyon paterculus" specimens, the other being from Locality 1 | ||||||||||
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Mammalia
- Apternodontidae
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Apternodus mediaevus
Matthew 1903
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2 specimens | |||||||||
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Mammalia
- Rodentia
- Aplodontidae
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Aplodontidae indet.
Brandt 1855
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Mammalia
- Rodentia
- Ischyromyidae
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? Titanotheriomys sp.
Miller and Gidley 1920
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1 specimen | |||||||||
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= ? Ischyromys sp.
Leidy 1856
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Alroy 2002 | |||||||||
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Mammalia
- Rodentia
- Eomyidae
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Paradjidaumo minor
(Douglass 1902)
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2 specimens | |||||||||
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= Paradjidaumo trilophus
Cope 1873
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Alroy 2002 | |||||||||
| recombined as Adjidaumo trilophus | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Powell |
| Coordinates: | 46.4° North, 112.8° West (view map) | ||||
| Paleocoordinates: | 48.3° North, 103.9° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
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
| Collection size: | 14 specimens |
| Taxonomic list comments:NISP 14 | |
Metadata
| Database number: | 16946 | ||
| 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:
| 2098. | R. L. Konizeski. 1961. Paleoecology of an Early Oligocene Biota from Douglass Creek Basin, Montana. Geological Society America Bulletin 72 [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] | |
| 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] |