Eighteen Mile District: Harrisonian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Moschidae
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Parablastomeryx falkenbachi n. sp.
Frick 1937
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Frick 1937 | |||||||||
| synonym of Pseudoblastomeryx advena | ||||||||||
| "18 miles S.E. of Lusk" | ||||||||||
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Mammalia
- Camelidae
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Stenomylus gracilis
Peterson 1907
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Frick and Taylor 1968 | |||||||||
| "middle" and "high" | ||||||||||
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Mammalia
- Merycoidodontidae
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Merychyus arenarum
Cope 1884
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Schultz and Falkenbach 1947 | |||||||||
| middle and high part of section | ||||||||||
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Merychyus minimus
Peterson 1907
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Schultz and Falkenbach 1947 | |||||||||
| lowest, middle, and upper part of section | ||||||||||
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Hypsiops luskensis n. sp.
Schultz and Falkenbach 1950
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Schultz and Falkenbach 1950 | |||||||||
| synonym of Phenacocoelus kayi | ||||||||||
| Harrison Fm., 2.5 mi SW of Van Tassel or 18 mi SE of Lusk, Niobrara Co. (7 measurements) | ||||||||||
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Mammalia
- Carnivora
- Amphicyonidae
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Adilophontes brachykolos n. gen., n. sp.
Hunt 2002
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Hunt 2002 | |||||||||
| "Upper Harrison beds" (5 measurements) | ||||||||||
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Daphoenodon sp.
Peterson 1909
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Hunt 1998 | |||||||||
| "Upper Harrison beds, 18-Mile District" (5 measurements) | ||||||||||
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= Daphoenodon falkenbachi n. sp.
Hunt 2002
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Hunt 2002 | |||||||||
| from the "High Brown Sand" | ||||||||||
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Mammalia
- Carnivora
- Canidae
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Desmocyon thomsoni
(Matthew 1907)
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| "Upper Harrison beds... 18 mi southeast of Lusk, middle brown sand"; "high brown sand"; and "high in section" | ||||||||||
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Cynarctoides acridens
(Barbour and Cook 1914)
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| "below high brown sand" | ||||||||||
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Cynarctoides luskensis n. sp.
Wang et al. 1999
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| Upper Harrison Beds | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Goshen |
| Coordinates: | 42.0° North, 104.2° West (view map) | ||||
| Paleocoordinates: | 42.9° North, 99.2° West | ||||
| Basis of coordinate: | based on political unit |
Time
| 10 m.y. bin: | Cenozoic 4-5 | ||
| *Period: | Tertiary | *Epoch: | Miocene |
| Key time interval: | Harrisonian | ||
| Age range of interval: | 23.10000 - 18.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:not the same as Sand Gulch (see), but 2.5 mi SW of Van Tassel according to Schultz and Falkenbach 1950 and possibly confused with that locality by other authors | |
Metadata
| Also known as: | 18 Miles District, 18 mi southeast of Lusk | ||
| Database number: | 17780 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Marcot | Research group: | vertebrate |
| Created: | 1995-03-26 00:00:00 | Last modified: | 2023-10-06 19:39:02 |
| Access level: | the public | Released: | 1995-03-26 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 3558. | X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [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] | |
| 6222 | C. Frick. 1937. Horned ruminants of North America. Bulletin of the American Museum of Natural History 69:1-669 [J. Alroy/J. Alroy/M. Uhen] | |
| 1549 | C. Frick and B. E. Taylor. 1968. A Generic Review of the Stenomyline Camels. American Museum Novitates 2353:1-51 [J. Alroy/J. Alroy/B. Beatty] | |
| 1977 | R. M. Hunt, Jr. 1998. Amphicyonidae. 196-227 [J. Alroy/J. Alroy/J. Alroy] | |
| 7676 | R. M. Hunt, Jr. 2002. New amphicyonid carnivorans (Mammalia, Daphoeninae) from the early Miocene of southeastern Wyoming. American Museum Novitates 3385:1-41 [J. Alroy/J. Alroy/J. Alroy] | |
| 3064 | C. B. Schultz and C. H. Falkenbach. 1947. Merychyinae, a subfamily of oreodonts. Bulletin of the American Museum of Natural History 88(4):157-286 [J. Alroy/J. Alroy/J. Marcot] | |
| 3066 | C. B. Schultz and C. H. Falkenbach. 1950. Phenacocoelinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 95(3) [J. Alroy/J. Alroy/J. Ju] |