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] Gruiformes Bonaparte, 1854
         Family Psophiidae Bonaparte, 1831 [monotypic] - trumpeters
           Genus Psophia Linnaeus, 1758
             Psophia viridis Spix, 1825 - dark-winged trumpeter
               1 Psophia viridis viridis Spix, 1825
               2 Psophia viridis dextralis Conover, 1934
               3 Psophia viridis obscura Pelzeln, 1857