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
                     Division Teleosteomorpha Arratia, 2001 see Infraclass Teleosteomorpha Arratia, 2001
                       Subdivision Teleostei Müller, 1845 - teleosts see Division Teleostei Müller, 1845
                         [stem] Order †Crossognathiformes Taverne, 1989
                           1 Family †Varasichthyidae Arratia, 1981
                           2 Family †Crossognathidae Woodward, 1901, "nom. praeval."
                           3 Family †Notelopidae Forey, 1977
                           4 Family †Pachyrhizodontidae Cope, 1872