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 Tachybaptus Reichenbach, 1853
             1 ‡?Tachybaptus rufolavatus (Delacour, 1932) - Alaotra grebe
             2 Tachybaptus ruficollis (Pallas, 1764) - little grebe
             3 Tachybaptus novaehollandiae (Stephens, 1826) - Australasian grebe
             4 Tachybaptus pelzelnii (Hartlaub, 1861) - Madagascan grebe
             5 Tachybaptus dominicus (Linnaeus, 1766) - least grebe