Canyon Ferry Reservoir 24BW18: Chadronian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Perissodactyla
- Hyracodontidae
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Hyracodontidae indet.
Cope 1879
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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
- Perissodactyla
- Equidae
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Mesohippus hypostylus
Osborn 1904
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1 specimen | |||||||||
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= Mesohippus bairdi
Leidy 1850
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Alroy 2002 | |||||||||
| - 7 | ||||||||||
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Mammalia
- Leptomerycidae
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Leptomeryx transmontanus
Douglass 1903
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7 specimens | |||||||||
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= Hendryomeryx esulcatus
Cope 1889
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Alroy 2002 | |||||||||
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= Pronodens transmontanus
Douglass 1903
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Korth and Diamond 2002 | |||||||||
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Mammalia
- Camelidae
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Poebrotherium cf. eximium
Hay 1902
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3 specimens | |||||||||
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Mammalia
- Carnivora
- Canidae
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Hesperocyon paterculus
(Matthew 1903)
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1 specimen | |||||||||
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= Hesperocyon gregarius
Cope 1873
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Alroy 2002 | |||||||||
| confirmed by Wang 1994; - 3 | ||||||||||
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Mammalia
- Micropternodontidae
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Talpidae indet.
(Fischer de Waldheim 1817)
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1 specimen | |||||||||
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= Cryptoryctes kayi
Reed 1954
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Reed 1956 | |||||||||
| original | ||||||||||
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Mammalia
- Apternodontidae
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Apternodus mediaevus
Matthew 1903
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1 specimen | |||||||||
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Mammalia
- Rodentia
- Cricetidae
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Eumys spokanensis
White 1954
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1 specimen | |||||||||
| (2 measurements) | ||||||||||
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= Eumys elegans
Leidy 1856
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Alroy 2002 | |||||||||
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Mammalia
- Lagomorpha
- Leporidae
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Palaeolagus temnodon
Douglass 1902
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1 specimen | |||||||||
| - 3 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Broadwater |
| Coordinates: | 46.1° North, 111.3° West (view map) | ||||
| Paleocoordinates: | 47.9° North, 102.4° 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: | 22 specimens |
| Taxonomic list comments:NOT in measured section even split of specimens possibly from 24LC16 yields estimated NISP of 22 "Leptomeryx evansi" is from the "upper levels" at this loc.; NISP 2 | |
Metadata
| Database number: | 16925 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 1994-04-30 00:00:00 | Last modified: | 2002-06-03 03:27:41 |
| Access level: | the public | Released: | 1994-04-30 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 3637. | T. E. White. 1954. Preliminary Analysis of the Fossil Vertebrates of the Canyon Ferry Reservoir Area. Proceedings of the United States National Museum 103(3326):395-438 [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] | |
| 6773 | W. W. Korth and M. E. Diamond. 2002. Review of Leptomeryx (Artiodactyla, Leptomerycidae) from the Orellan (Oligocene) of Nebraska. Annals of Carnegie Museum 71(2):107-129 [J. Alroy/J. Alroy/J. Alroy] | |
| 2845 | C. A. Reed. 1956. A new species of the fossorial mammal Arctoryctes from the Oligocene of Colorado. Fieldiana Geology 10(24) [J. Alroy/J. Alroy/J. Ju] |