Chordata Bateson, 1885 - chordates
   Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758
     1 Subclass Crossopterygii Huxley, 1861 see Infraclass Crossopterygii Huxley, 1861
     2 Subclass Actinopteri Cope, 1871 see [unranked] Actinopteri Cope, 1871