PBDB Collection

North Ridge Highway 85 ( of the United States)

Where: Niobrara County, Wyoming (43.0° N, 104.5° W: paleocoordinates 43.9° N, 99.4° W)

• coordinate based on political unit

When: Harrisonian (24.8 - 18.5 Ma)

Environment/lithology: terrestrial

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17815: authorized by John Alroy, entered by John Alroy on 18.10.1995, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Mammalia
Carnivora - Canidae	Desmocyon thomsoni⁴, Leptocyon gregorii³, Enhydrocyon crassidens, Paraenhydrocyon josephi, Paraenhydrocyon wallovianus Desmocyon thomsoni⁴ Matthew 1907 bone-crushing dog Leptocyon gregorii³ Matthew 1907 canine Enhydrocyon crassidens Matthew 1907 canid North Ridge Highway 85, 10 mi N of Lusk Paraenhydrocyon josephi Cope 1881 canid North Ridge, 10 mi N of Lusk Paraenhydrocyon wallovianus Cope 1881 canid North Ridge, 0.5 mi W of Highway 85, Harrison Fm.
Perissodactyla - Rhinocerotidae	Diceratherium annectens¹, Diceratherium armatum¹ Diceratherium annectens¹ Marsh 1873 rhinoceros "North Ridge, 0.5 mile west of Highway 85" Diceratherium armatum¹ Marsh 1875 rhinoceros "North Ridge locality"
Artiodactyla - Merycoidodontidae	"Promerycochoerus carrikeri" = Promerycochoerus carrikeri², "Promerycochoerus barbouri" = Promerycochoerus carrikeri² "Promerycochoerus carrikeri" = Promerycochoerus carrikeri² Peterson 1907 oreodont N of Lusk near US 85 "Promerycochoerus barbouri" = Promerycochoerus carrikeri² Peterson 1907 oreodont North Ridge 1/2 mi W of US 85

¹Prothero 2005; ²Schultz and Falkenbach 1949; ³Tedford et al. 2009; ⁴Wang et al. 1999