Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
Count: [f†f] 7c;100o;734f; ‡2o;8f; †2c;109o;819f;10g [22 Aug 2017]
   Class Agnatha Cope, 1889 [paraphyletic]
  Count: [f†f] 2o;2f; †5o;37f;1g [22 Aug 2017]
     Subclass Cephalaspidomorpha see Class Agnatha Cope, 1889
    Count: [f†f] 1o;1f; †3o;22f;1g [2 May 2017]
       Order †Galeaspida Liu, 1965 see Order Galeaspidiformes
      Count: [†f] †10f [30 Apr 2017]
         Family †Nanpanaspidae Liu, 1975 see Family Nanpanaspididae Liu, 1975, nom. praeval.
        Count: -