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] Passeriformes Linnaeus, 1758
         suboscines see Suborder Suboscines
           Tyranni see Suborder Tyranni
             Family Tyrannidae Vigors, 1825 - tyrant-flycatchers
               Genus Myiornis A. de W. Bertoni, 1901
                 1 Myiornis auricularis (Vieillot, 1818) - eared pygmy-tyrant
                 2 Myiornis albiventris (Berlepsch & Stolzmann, 1894) - white-bellied pygmy-tyrant
                 3 Myiornis atricapillus (Lawrence, 1875) - black-capped pygmy-tyrant
                 4 Myiornis ecaudatus (d'Orbigny & Lafresnaye, 1837) - short-tailed pygmy-tyrant