Royal Valley: Harrisonian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Perissodactyla - Rhinocerotidae
Menoceras arikarense (Barbour 1906)
Prothero 2005
Mammalia - Merycoidodontidae
Merycochoerus matthewi Loomis 1924
Schultz and Falkenbach 1940
Merychyus minimus Peterson 1907
Schultz and Falkenbach 1947
Royal Valley 9 mi S of Lusk
Phenacocoelus stouti Schultz and Falkenbach 1950
Schultz and Falkenbach 1950
recombined as Merycoides stouti
"Royal Valley, 9 mi. S. of Lusk"
Mammalia - Carnivora - Amphicyonidae
Daphoenodon sp. Peterson 1909
Hunt 1998
"Upper Harrison beds, Royal Valley District"
    = Daphoenodon skinneri n. sp. Hunt 2002
Hunt 2002
"9 miles... southeast of Lusk, Royal Valley District"
Mammalia - Carnivora - Canidae
Paraenhydrocyon wallovianus (Cope 1881)
Wang 1994
9 mi S of Lusk, "Marsland" Fm.
Desmocyon thomsoni (Matthew 1907)
Wang et al. 1999
"Upper Harrison beds... 9 mi south of Lusk" and "Royal Valley"
Phlaocyon minor (Matthew 1907)
Wang et al. 1999
Mammalia - Rodentia - Entoptychidae
Gregorymys riggsi Wood 1936
see common names

Geography
Country:United States State/province:Wyoming County:Niobrara
Coordinates: 42.6° North, 104.4° West (view map)
Paleocoordinates:43.5° North, 99.3° West
Basis of coordinate:based on political unit
Geographic resolution:local area
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
Geological group:Hemingford Formation:Marsland
Stratigraphic resolution:group of beds
Stratigraphy comments: = Upper Harrison beds
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:possibly relevant: Stenomylus gracilis Frick and Taylor 1968: 7 mi SE of Lusk, Niobrara Co. Problastomeryx olcotti Frick 1937: "Harrison... 9 miles S.E. of Lusk" Pseudoblastomeryx ("Parablastomeryx") falkenbachi Frick 1937: "10 miles S.E. of Lusk"
Metadata
Database number:17833
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Modifier:M. Carrano Research group:vertebrate
Created:1995-03-26 00:00:00 Last modified:2018-02-05 13:50:45
Access level:the public Released:1995-03-26 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
3530. J. H. Wahlert and R. A. Souza. 1988. Skull morphology of Gregorymys and relationships of the Entoptychinae (Rodentia, Geomyidae). American Museum Novitates 2922:1-13 [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]
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]
51726 D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
3062 C. B. Schultz and C. H. Falkenbach. 1940. Merycochoerinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 77(5):213-306 [J. Alroy/J. Alroy/J. Marcot]
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]
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]
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]