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 Diomedeidae Gray, 1840 - albatrosses Genus Thalassarche Reichenbach, 1853 Thalassarche chrysostoma (Forster, 1785) - grey-headed albatross