Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893 Order Pelecaniformes Sharpe, 1891 Suborder Pelecani Sharpe, 1891 see Infraorder Pelecanides Sharpe, 1891 Family Fregatidae Degland & Gerbe, 1867 - frigatebirds Genus Fregata Lacépède, 1799