Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Trogoniformes Wetmore & Miller, 1926 - trogons
         Family Trogonidae Lesson, 1828 - trogons
           Genus Trogon Brisson, 1760
             01 Trogon melanocephalus Gould, 1835 - black-headed trogon
             02 Trogon citreolus Gould, 1835 - citreoline trogon
             03 Trogon viridis Linnaeus, 1766 - white-tailed trogon
             04 Trogon bairdii Lawrence, 1868 - Baird's trogon
             05 Trogon surrucura Vieillot, 1817 - Surucua trogon
             06 Trogon curucui Linnaeus, 1766 - blue-crowned trogon
             07 Trogon violaceus J.F. Gmelin, 1788 - violaceous trogon
             08 Trogon mexicanus Swainson, 1827 - mountain trogon
             09 Trogon elegans Gould, 1834 - elegant trogon
             10 Trogon collaris Vieillot, 1817 - collared trogon
             11 Trogon personatus Gould, 1842 - masked trogon
             12 Trogon aurantiiventris Gould, 1856 - orange-bellied trogon
             13 Trogon rufus J.F. Gmelin, 1788 - black-throated trogon
             14 Trogon massena Gould, 1838 - slaty-tailed trogon
             15 Trogon clathratus Salvin, 1866 - lattice-tailed trogon
             16 Trogon melanurus Swainson, 1838 - black-tailed trogon
             17 Trogon comptus J.T. Zimmer, 1948 - white-eyed trogon