Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates
     Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
       Order Galliformes Temminck, 1820 - fowl
         Family Cracidae Vigors, 1825 - chachalacas, curassows, guans
         Family Megapodiidae Lesson, 1831 - megapodes
         Family Phasianidae Vigors, 1825 - turkeys, grouse, pheasants, partridges