Temporal range: Early Oligocene–Late Oligocene
(Barbour & Schultz, 1935)
Sunkahetanka is an extinct genus of small bone crushing omnivorous mammal similar to a dog of the family Canidae) which inhabited North America during the Oligocene living from 30.8—26.3 Ma and existed for approximately . 
Philotrox was named by Macdonald (1963). It was synonymized subjectively with Enhydrocyon by Swisher (1982); it was revalidated by Carroll (1988), Wang (1994) and Wang and Tedford (1996). It was assigned to Canidae by Macdonald (1963), Carroll (1988), Wang (1994) and Wang and Tedford (1996).
- Paleobiology Database: Sunkahetanka Basic info.
- J. R. Macdonald. 1963. The Miocene faunas from the Wounded Knee area of western South Dakota. Bulletin of the American Museum of Natural History 125(3):139-238
- X. Wang and R. H. Tedford. 1996. in Prothero and Emry
- S. Legendre and C. Roth. 1988. Correlation of carnassial tooth size and body weight in recent carnivores (Mammalia). Historical Biology 1(1):85-98
- Wang, X. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora, Canidae). Bulletin of the American Museum of Natural History, 221:1-207.
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