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] Sphenisciformes Sharpe, 1891 Family Spheniscidae Bonaparte, 1831 - penguins Genus Aptenodytes Miller, 1778 1 Aptenodytes patagonicus Miller, 1778 - king penguin 2 Aptenodytes forsteri Gray, 1844 - emperor penguin