After McKenna & Bell, 1997, Wang, Tedford & Taylor, 1999, and Tedford, Wang & Taylor, 2009

<==o Canoidea Fischer von Waldheim, 1817 [non Gray, 1821] (koiraeläimet)
   |?-+-- †Prohesperocyon wilsoni (Gustafson, 1986) Wang, 1994
   |  `--o †“Miacis” [Mimocyon, Xinyuictis] [paraphyletic Miacoidea: Miacidae]
   |     |-- †M. australis
   |     |-- †M. cognitus
   |     |-- †M. deutschi
   |     |-- †M. exiguus
   |     |-- †M. hargeri (Wortman, 1901)
   |     |-- †M. hookwayi
   |     |-- †M. latidens
   |     |-- †M. medius
   |     |-- †M. parvivorus Cope, 1872c
   |     |-- †M. petilus
   |     |-- †M. sylvestris (Marsh, 1872)
   |     |-- †M. uintensis
   |     |-- †M. washakius
   |     `-- †M. winkleri
   `--+?- †Neocynodesmus delicatus (Loomis, 1932a) MacDonald 1963
      |?- †Pachycynodon
      |?- †Proturocyon
      `--o Canidae Fischer von Waldheim, 1817 [non Gray, 1821] sensu lato
         |-- †Hesperocyoninae ("alkukoirat"; ur-dogs) [paraphyletic??]
         `--+==o †Procynodictis Wortman & Matthew 1899 [Plesiomiacis Simpson, 1945]
		    |  |-- †Procynodictis progressus (Stock, 1935) [Viverravus progressus Stock, 1935; Plesiomiacis progressus (Stock) Simpson, 1945]
            |  `--+-- †Procynodictis vulpiceps Wortman & Matthew 1899 [Miacis gracilis Clark, 1939]
            |     `-- †Borophaginae Wang, Tedford & Taylor, 1999
            `--o Canidae Fischer von Waldheim, 1817 [non Gray, 1821] sensu stricto [Canidae: Caninae sensu McKenna & Bell, 1997, and Wang, Tedford & Taylor, 1999] (varsinaiset i.e. nykykoirat; modern dogs)
               `==o †Leptocyon Matthew, 1918 [Vulpes Trouessart, 1897, Stirton & McGrew, 1935, Gregory, 1942, Macdonald, 1948; Neocynodesmus Macdonald, 1963] [paraphyletic]
                  |-- †Leptocyon sp. A
                  `--+--+-- †Leptocyon vulpinus (Merriam, 1907)
                     |  `--+-- †Leptocyon mollis (Merriam, 1906)
                     |     `-- †Leptocyon douglassi Tedford, Wang & Taylor, 2009
                     `--+-- †Leptocyon delicatus Loomis, 1932 [Neocynodesmus delicatus (Loomis, 1932) Macdonald, 1963]
                        `--+-- †Leptocyon gregorii (Matthew, 1907)
                           `--+-- †Leptocyon sp. B
                              `--+-- †Leptocyon leidyi Tedford, Wang & Taylor, 2009
                                 `--+--+-- †Leptocyon vafer (Leidy, 1858) [non 1869] Matthew, 1918 [Canis vafer Leidy, 1858] [type]
                                    |  `-- †Leptocyon tejonensis Tedford, Wang & Taylor, 2009
                                    `--+-- †Leptocyon matthewi Tedford, Wang & Taylor, 2009
                                       `--+-- Vulpini Hemprich & Ehrenberg, 1832 (foxes; ketut)
                                          `-- Canini Fischer von Waldheim, 1817 [non Gray, 1821] (true dog; aitokoirat)

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