Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Superclass Crustacea Pennant, 1777 - crustaceans see [unranked] Crustaceomorpha Chernyshev, 1960 Class Cephalocarida H.L. Sanders, 1955 - cephalocarids