Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct.
       Vertebrata Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
         Myopterygii Janvier, 1978 - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Teleostomi Bonaparte, 1836 see Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
               Euteleostomi - bony vertebrates see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
                 Class Actinopterygii Woodward, 1891 - ray-finned fishes see Clade Actinopterygii Woodward 1891 [Moore & Near 2020]
                   Subclass Neopterygii Regan, 1923
                     Division Teleostei Müller, 1845
                       Subdivision Osteoglossomorpha Greenwood et al., 1966 see Cohort Osteoglossomorpha Greenwood et al., 1966
                         Order †Ichthyodectiformes Bardack & Sprinkle, 1969 [monophyletic?]
                           Family †Ichthyodectidae Crook, 1892
                             1 Genus †Gillicus Hay, 1898
                             2 Genus †Ichthyodectus nom. null. see Genus Ichthyodectes Cope, 1870
                             3 Genus †Xiphactinus Leidy, 1870