Subphylum [Vertebrata] Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801 Class Chondrichthyes Huxley, 1880 - cartilaginous fishes 1 ?Family †Kannathalepididae Märss & Gagnier, 2001 2 ?Family †Wellingtonellidae Märss, Wilson & Thorsteinsson, 2002 [monotypic]