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 Podilymbus Lesson, 1831
             Podilymbus podiceps (Linnaeus, 1758) - pied-billed grebe
               1 Podilymbus podiceps podiceps (Linnaeus, 1758)
               2 Podilymbus podiceps antillarum Bangs, 1913
               3 Podilymbus podiceps antarcticus (Lesson, 1842)