Subphylum [Vertebrata] Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   Class Agnatha Cope, 1889
     Subclass †Thelodonti Kiaer, 1932
       Order †Phlebolepidiformes Berg, 1937
         Family †Phlebolepididae Berg, 1940, nom. praeval.
           1 Genus †Phlebolepis Pander, 1856
           2 Genus †Helenolepis Karatajūtė-Talimaa, 1978
           3 Genus †Erepsilepis Märss, Wilson & Thorsteinsson, 2002 [monotypic]