Phylum Chordata Bateson, 1885 - chordates
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
         Order Galliformes Temminck, 1820 - fowl
           Family Phasianidae Vigors, 1825 - turkeys, grouse, pheasants, partridges
             Subfamily Odontophorinae Gould, 1844 - American quail
               01 Genus Dendrortyx Gould, 1844
               02 Genus Oreortyx Baird, 1858
               03 Genus Callipepla Wagler, 1832
               04 Genus Lophortyx Bonaparte, 1838 see Genus Callipepla Wagler, 1832
               05 Genus Philortyx Gould, 1846
               06 Genus Colinus Goldfuss, 1820
               07 Genus Odontophorus Vieillot, 1816
               08 Genus Dactylortyx Ogilvie-Grant, 1893
               09 Genus Cyrtonyx Gould, 1844
               10 Genus Rhynchortyx Ogilvie-Grant, 1893