Chordata Bateson, 1885 - chordates
   Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758
     Subclass Actinopteri Cope, 1871 see [unranked] Actinopteri Cope, 1871
       Superorder Ganoidei (Agassiz)
         Order Holostei Müller, 1846 [monotypic] see Infraclass Holostei Müller, 1846
           Suborder Ginglymodi (Cope, 1871) see Division Ginglymodi Cope, 1871
             120 Family †Aspidorhynchidae Nicholson & Lydekker, 1889
             121 Family Lepisosteidae Cuvier, 1825 - gars