Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Class Chondrichthyes Huxley, 1880 - cartilaginous fishes Order Hexanchiformes Compagno, 1973 - six-gill sharks Family Chlamydoselachidae Garman, 1884 - frill sharks Genus Chlamydoselachus Garman, 1884 Chlamydoselachus anguineus Garman, 1884 - frill shark