Head of Indian Creek (Chadron/Wyoming): Chadronian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Carnivora
- Subparictidae
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Parictis dakotensis
Clark 1936
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Clark and Guensburg 1972 | |||||||||
| recombined as Subparictis dakotensis | ||||||||||
| Chadron Fm., near Lusk, Niobrara Co. | ||||||||||
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Mammalia
- Carnivora
- Amphicyonidae
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Brachicyon intermedius n. sp.
Loomis 1931
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Loomis 1931 | |||||||||
| recombined as Brachyrhynchocyon intermedius | ||||||||||
| Seaman Hills; said to be Chadronian by Hunt 1996 | ||||||||||
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Mammalia
- Carnivora
- Canidae
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Hesperocyon gregarius
(Cope 1873)
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| "Indian Creek area, Chadronian" | ||||||||||
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Mammalia
- Merycoidodontidae
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Otionohyus wardi
Schultz and Falkenbach 1968
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Stevens and Stevens 1996 | |||||||||
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= Miniochoerus forsythae
Schultz and Falkenbach 1968
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Alroy 2002 | |||||||||
| "Otionohyus wardi degrooti": replaces ID of Schultz and Falkenbach 1968 from Chadron "northeast of Indian Creek" in Niobrara Co. | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Niobrara |
| Coordinates: | 43.0° North, 104.5° West (view map) | ||||
| Paleocoordinates: | 44.4° North, 95.8° 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
| Collection excludes: | some genera |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:includes Spring Draw (see) "Daphoenus sp." Hunt 1998b: "Chadron Formation, Seamen Hills area, Niobrara Co." "Brachyrhynchocyon sp." Hunt 1998b: "Chadron Formation, Seamen Hills area, Niobrara Co." "Subhyracodon occidentale" Wood 1929: "Titanotherium Beds" of "Indian Creek" in WY "Poebrotherium wilsoni" Prothero 1996d: "Lusk area, Niobrara Co. ... late Chadronian" | |
Metadata
| Database number: | 16974 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1995-10-18 00:00:00 | Last modified: | 2006-09-13 00:34:39 |
| Access level: | the public | Released: | 1995-10-18 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6226. | X. Wang. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 221:1-207 [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] | |
| 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] | |
| 2268 | F. B. Loomis. 1931. A new Oligocene dog. American Journal of Science 222(128):100-102 [J. Alroy/J. Alroy/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] |