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)
         1 Order Chondrostei Müller, 1844 see Subclass Chondrostei Müller, 1844
         2 Order †Pycnodonti see Order Pycnodontiformes Berg, 1937
         3 Order Holostei Müller, 1846 [monotypic] see Infraclass Holostei Müller, 1846
         4 Order Halecomorphi Cope, 1872 see Division Halecomorphi Cope, 1872