Infraphylum [Gnathostomata] Gegenbaur, 1874 - jawed vertebrates see Superclass Gnathostomata Gegenbaur, 1874 Megaclass Osteichthyes Huxley, 1880 see Clade Osteichthyes Huxley 1880 [Moore & Near 2020] 1 Superclass Actinopterygii Woodward, 1891 see Clade Actinopterygii Woodward 1891 [Moore & Near 2020] 2 Superclass Sarcopterygii Romer, 1955