Kingdom Animalia Linnaeus, 1758 - animals Phylum Mollusca Linnaeus, 1758 - molluscs Class Polyplacophora Blainville, 1816 - chitons Order Acanthochitonida Bergenhayn, 1930 see Suborder Acanthochitonina Bergenhayn, 1930 Genus Acanthochitona Gray, 1821