Eighteen Mile District: Harrisonian, Wyoming

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Carnivora - Amphicyonidae
Daphoenodon sp. Peterson 1909
Hunt 1998
"Upper Harrison beds, 18-Mile District" (5 measurements)
    = Daphoenodon falkenbachi n. sp. Hunt 2002
Hunt 2002
from the "High Brown Sand"
Adilophontes brachykolos n. gen., n. sp. Hunt 2002
Hunt 2002
"Upper Harrison beds" (5 measurements)
Mammalia - Carnivora - Canidae
Desmocyon thomsoni (Matthew 1907)
"Upper Harrison beds... 18 mi southeast of Lusk, middle brown sand"; "high brown sand"; and "high in section"
Cynarctoides luskensis n. sp. Wang et al. 1999
Upper Harrison Beds
Cynarctoides acridens (Barbour and Cook 1914)
"below high brown sand"
Mammalia - Ungulata - Merycoidodontidae
Hypsiops luskensis n. sp. Schultz and Falkenbach 1950
Schultz and Falkenbach 1950
(7 measurements)
    = Merycoides harrisonensis Peterson 1907
Alroy 2002
recombined as Paramerychyus harrisonensis
Harrison Fm., 2.5 mi SW of Van Tassel or 18 mi SE of Lusk, Niobrara Co.
Merychyus arenarum Cope 1884
Schultz and Falkenbach 1947
middle and high part of section
Merychyus minimus Peterson 1907
Schultz and Falkenbach 1947
lowest, middle, and upper part of section
Mammalia - Ungulata - Camelidae
Stenomylus gracilis Peterson 1907
Frick and Taylor 1968
"middle" and "high"
Mammalia - Ungulata - Moschidae
Parablastomeryx falkenbachi n. sp. Frick 1937
Frick 1937
    = Pseudoblastomeryx falkenbachi Frick 1937
Alroy 2002
synonym of Pseudoblastomeryx advena
"18 miles S.E. of Lusk"
see common names

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
*Period:Tertiary *Epoch:Miocene
Key time interval:Harrisonian
Age range of interval:24.80000 - 20.43000 m.y. ago
* legacy (obsolete) database fields
Lithology and environment
Environment:terrestrial indet.
Modes of preservation:body
Collection methods and comments
Collection excludes:some genera
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
Database number:17780
Authorizer:J. Alroy Enterer:J. Alroy
Research group:vertebrate
Created:1995-03-26 00:00:00 Last modified:2002-06-03 03:27:42
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. Uhen]
6222 C. Frick. 1937. Horned ruminants of North America. Bulletin of the American Museum of Natural History 69:1-669 [J. Alroy/J. Alroy/J. Alroy]
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]