Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Pisces Class Chondrichthyes Huxley, 1880 - cartilaginous fishes Subclass Holocephali Bonaparte, 1832 Order Chimaeriformes Obruchev, 1953 - chimaeras Family Rhinochimaeridae Garman, 1901 - longnose chimaeras