Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Trogoniformes Wetmore & Miller, 1926 - trogons
                   Family Trogonidae Lesson, 1828 - trogons
                     Genus Harpactes Swainson, 1833
                       1 Harpactes erythrocephalus (Gould, 1834) - red-headed trogon
                       2 Harpactes fasciatus (Pennant, 1769) - Malabar trogon
                       3 Harpactes oreskios (Temminck, 1823) - orange-breasted trogon
                       4 Harpactes reinwardtii (Temminck, 1822) - blue-tailed trogon
                       5 Harpactes wardi (Kinnear, 1927) - Ward's trogon
                       6 Harpactes kasumba (Raffles, 1822) - red-naped trogon