Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801 Gnathostomata Class Chondrichthyes Huxley, 1880 - cartilaginous fishes Subclass Holocephali Bonaparte, 1832 Suborder †Menaspoidei Patterson, 1965 [monotypic] see Order Menaspiformes Patterson, 1965 1 Family †Menaspidae Woodward, 1891