Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct.
       Infraphylum Vertebrata Lamarck, 1801 - vertebrates
         Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
           Eugnathostomata
             Grade Teleostomi Bonaparte, 1836 see Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
               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
                   [crown] Neopterygii Regan, 1923 see Subclass Neopterygii Regan, 1923
                     Infraclass Holostei Müller, 1846 - gars, bowfins, and relatives
                       Division Ginglymodi Cope, 1871
                         Order †Semionotiformes Aramboug & Bertin, 1958
                           1 Genus †Sangiorgioichthys Tintori & Lombardo, 2007, incertae sedis
                           2 Family †Semionotidae Woodward, 1890, "nom. praeval."
                           3 Family †Callipurbeckidae López-Arbarello, 2012, orth. inval. see Family Callipurbeckiidae López-Arbarello, 2012