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] Podicipediformes Fürbringer, 1888 [monotypic]
         Family Podicipedidae Bonaparte, 1832 - grebes
           Genus Rollandia Bonaparte, 1856
             1 Rollandia rolland (Quoy & Gaimard, 1824) - white-tufted grebe
             2 Rollandia microptera (Gould, 1868) - short-winged grebe