Mammalia Linnaeus, 1758 - mammals
   Carnivoramorpha Wyss & Flynn, 1993
     Carnivoraformes Flynn, Finarelli & Spaulding 2010
       [stem] Family †Miacidae Cope, 1880
         †Uintacyon group Leidy, 1872
           1.1 †Uintacyon vorax Leidy, 1872
           1.2 †Uintacyon massetericus Cope, 1882
           2 †Zodiocyon zetesios Tong & Wang, 2006
           3 †Xinyuictis tenuis Zhen, Tung & Chi, 1975
           4 †Uintacyon rudis Rose, 1981
           5 †Uintacyon gingerichi Heinrich, Strait & Houde, 2008