Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Class Chondrichthyes Huxley, 1880 - cartilaginous fishes Order Lamniformes Berg, 1958 - mackerel sharks Family Cetorhinidae Gill, 1861 - basking sharks Genus Cetorhinus de Blainville, 1816