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 Pelecanoididae Gray, 1871 - diving petrels Genus Pelecanoides Lacépède, 1799 Pelecanoides georgicus Murphy & Harper, 1916 - South Georgia diving petrel