[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
         Class Osteichthyes Huxley, 1880 - bony fishes and tetrapods see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
           Subclass Actinopterygii Woodward, 1891 - ray-finned fishes see Class Actinopterygii Woodward, 1891
             Infraclass Actinopteri Cope, 1871 see Class Actinopteri Cope, 1871
               1 Order †Paphosisciformes Grogan & Lund, 2015 [monotypic]
               2 Order †Discordichthyiformes Minikh, 1998 [monotypic]
               3 Order †Amphicentriformes
               4 Order †Scanilepidiformes Sytchevskaya, 1999
               5 Order †Aeduelliformes Heyler, 1969
               6 Superdivision Chondrostei Müller, 1844 see Subclass Chondrostei Müller, 1844
               7 Superdivision Neopterygii Regan, 1923 see Subclass Neopterygii Regan, 1923