Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Pisces Class Chondrichthyes Huxley, 1880 - cartilaginous fishes Subclass Elasmobranchii Bonaparte, 1838 - shark-like fishes Order Squaliformes Compagno, 1973 - dogfish sharks Family Echinorhinidae Gill, 1862 - bramble sharks Family Squalidae Blainville, 1816 - dogfish sharks