Kingdom Animalia (animals) Eumetazoa (metazoans) Bilateria (bilaterally symmetrical animals) Protostomia (protostomes) Lophotrochozoa Trochozoa Mollusca (clams, snails, squids, and relatives) Class Cephalopoda Order Nautilida Order Octopoda Order Sepiida Order Sepiolida Order Spirulida Order Teuthida Order Vampyromorphida
