Neornithes Gadow, 1893 - living birds
Status: extant
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
  Status: extant
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
    Status: extant
       [Order] Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
      Status: extant
         Family Alcidae Vigors, 1825 - auks
        Status: extant
           Genus ‡Pinguinus Bonnaterre, 1791 [monotypic]
          Status: extinct
             1 ‡Pinguinus impennis (Linnaeus, 1758) - great auk
            Status: extinct