Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801 Gnathostomata Class Chondrichthyes Huxley, 1880 - cartilaginous fishes Subclass Holocephali Bonaparte, 1832 Order †Chondrenchelyiformes Moy-Thomas, 1939 [monotypic] Family †Chondrenchelyidae Jordan, 1923