After Wang, Tedford & Taylor, 1999
    †Tephrocyon Merriam, 1906
        †Tephracyon (lapsus calami)
        †Tephrocyon rurestris (Condon, 1896)
            †Canis rurestris Condon, 1896
            †Tephrocyon rurestris (Condon); Merriam, 1906
            †Tephrocyon rurestris (Condon); Merriam, 1913
            †Tephrocyon rurestris (Condon); Thorpe, 1922a
            †Tephrocyon rurestris (Condon); Matthew, 1924
            †Tomarctus rurestris (Condon); Downs, 1956
            †Tomarctus cf. rurestris (Condon); Shotwell, 1968
            †Tomarctus cf. T. kelloggi (Merriam); Shotwell, 1968
            †Tomarctus rurestris (Condon); Munthe, 1998
            †Tephrocyon rurestris (Condon); Wang, Tedford & Taylor, 1999
Reference(s):
- Wang, X., Tedford, R. H. & Taylor, B. E., 1999: Phylogenetic systematics of the Borophaginae (Carnivora, Canidae).
–Bulletin of the American Museum of Natural History: Vol. #243, pp. 1-391 [http://hdl.handle.net/2246/1588] 
 
