Douglas Area Upper Chadron: Chadronian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Rodentia
- Eomyidae
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Yoderimys sp.
Wood 1955
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= Yoderimyinae indet.
Wood 1955
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Alroy 2002 | |||||||||
Mammalia
- Rodentia
- Ischyromyidae
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Ischyromys parvidens
Miller and Gidley 1920
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= Ischyromyidae indet.
Alston 1876
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Alroy 2002 | |||||||||
Titanotheriomys veterior
(Matthew 1903)
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original and current combination Ischyromys veterior | ||||||||||
Mammalia
- Lagomorpha
- Leporidae
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Megalagus brachyodon
(Matthew 1903)
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Megalagus turgidus
(Cope 1873)
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Palaeolagus haydeni
Leidy 1856
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Mammalia
- Creodonta
- Hyaenodontidae
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Hyaenodon crucians
Leidy 1853
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Hyaenodon horridus
Leidy 1853
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Mammalia
- Merycoidodontidae
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Merycoidodon culbertsoni
(Leidy 1848)
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original and current combination Merycoidodon culbertsonii | ||||||||||
Otionohyus wardi
Schultz and Falkenbach 1968
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= Miniochoerus forsythae
Schultz and Falkenbach 1968
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Stevens and Stevens 1996 | |||||||||
includes type of "Otionohyus wardi degrooti": replaces ID of Schultz and Falkenbach 1968 from 30' below PWL 8 mi. SE of Douglas | ||||||||||
Miniochoerus chadronensis
(Schultz and Falkenbach 1956)
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includes "Stenopsochoerus douglasensis" Schultz and Falkenbach 1956 from Chadron Fm., UNSM Wyo-3 7 mi SE of Douglas | ||||||||||
Mammalia
- Leptomerycidae
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Leptomeryx speciosus
Lambe 1908
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Mammalia
- Protoceratidae
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Leptotragulus sp.
Scott and Osborn 1887
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= Protoceratidae indet.
Marsh 1891
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Alroy 2002 | |||||||||
Mammalia
- Camelidae
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Poebrotherium eximium
Hay 1902
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see also Prothero 1996d | ||||||||||
Mammalia
- Perissodactyla
- Rhinocerotidae
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Subhyracodon mitis
(Cope 1875)
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Prothero 2005 | |||||||||
"From the late Chadronian: ... from Douglas, Converse County, Wyoming" | ||||||||||
Mammalia
- Perissodactyla
- Brontotheriidae
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Brontotheriidae indet.
(Marsh 1873)
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Mammalia
- Leptictidae
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Leptictis dakotensis
(Leidy 1868)
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see common names |
Geography
Country: | United States | State/province: | Wyoming | County: | Converse |
Coordinates: | 42.9° North, 105.2° West (view map) | ||||
Paleocoordinates: | 44.4° North, 96.5° 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 |
Lithology and environment
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Taxonomic list comments:tuffs 4 and 5 are above, not correlable with, the F:AM "Upper Puprle White": Larson and Evanoff 1998 between tuffs 4 and 5 |
Metadata
Database number: | 16942 | ||
Authorizer: | J. Alroy, J. Marcot | Enterer: | J. Alroy, J. Marcot | 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:
1470. | E. Evanoff, D. R. Prothero, and R. H. Lander. 1992. Elocene-Oligocene climatic change in North America: The White River Formation near Douglass, East-Central Wyoming. 116-130 [J. Alroy/J. Alroy/M. Uhen] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
51726 | D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot] | |
6270 | M. S. Stevens and J. B. Stevens. 1996. Merycoidodontinae and Miniochoerinae. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 498-573 [J. Alroy/J. Alroy/J. Alroy] |