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] Procellariiformes Fürbringer, 1888
         Family Procellariidae Leach, 1820 - petrels, shearwaters
           01 Genus Macronectes Richmond, 1905
           02 Genus Fulmarus Stephens, 1826
           03 Genus Thalassoica Reichenbach, 1853 [monotypic]
           04 Genus Daption Stephens, 1826 [monotypic]
           05 Genus Pagodroma Bonaparte, 1856 [monotypic]
           06 Genus Halobaena Bonaparte, 1856 [monotypic]
           07 Genus Pachyptila Illiger, 1811
           08 Genus Aphrodroma Olson, 2000 [monotypic]
           09 Genus Pterodroma Bonaparte, 1856
           10 Genus Pseudobulweria Mathews, 1936
           11 Genus Procellaria Linnaeus, 1758
           12 Genus Calonectris Mathews & Iredale, 1915
           13 Genus Puffinus Brisson, 1760
           14 Genus Bulweria Bonaparte, 1843