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 Passeriformes Linnaeus, 1758
                   Suborder Clamatores see Suborder Tyranni
                     Superfamily Tyrannoidea see Suborder Tyranni
                       Family Tyrannidae Vigors, 1825 - tyrant-flycatchers
                         Subfamily Elaeniinae see Subfamily Tyranninae
                           Genus Elaenia Sundevall, 1836
                             1 Elaenia flavogaster (Thunberg, 1822) - yellow-bellied elaenia
                             2 Elaenia chiriquensis Lawrence, 1865 - lesser elaenia