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] Pelecaniformes Sharpe, 1891
         1 ?Family Phaethontidae Brandt, 1831 [monotypic] - tropicbirds
         2 ?Family Fregatidae Degland & Gerbe, 1867 - frigatebirds
         3 Family Scopidae Bonaparte, 1853 [monotypic] - hammerkop
         4 Family Balaenicipitidae Bonaparte [monotypic] - shoebill
         5 Family Pelecanidae Rafinesque, 1815 - pelicans
         6 Family Sulidae Reichenbach, 1849 - gannets, boobies
         7 Family Phalacrocoracidae Reichenbach, 1850 [monotypic] - cormorants
         8 Family Anhingidae Reichenbach, 1849 [monotypic] - anhingas