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 crepitans Linnaeus, 1758 - grey-winged trumpeter
               1 Psophia crepitans crepitans Linnaeus, 1758
               2 Psophia crepitans napensis Sclater & Salvin, 1873