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
         01 ?Family Otidae - bustards see Family Otididae Gray, 1840
         02 Family Mesitornithidae Wetmore, 1960 - mesites
         03 Family Cariamidae Bonaparte, 1853 - seriemas
         04 Family Rhynochetidae Newton, 1868 [monotypic] - kagu
         05 Family Eurypygidae Selby, 1840 [monotypic] - sunbittern
         06 Family Rallidae Vigors, 1825 - rails, waterhens, coots
         07 Family Heliornithidae Gray, 1841 - finfoots
         08 Family Psophiidae Bonaparte, 1831 [monotypic] - trumpeters
         09 Family Gruidae Vigors, 1825 - cranes
         10 Family Aramidae Bonaparte, 1849 [monotypic] - limpkins