Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Cephalocarida H.L. Sanders, 1955 - cephalocarids 1 Order Brachypoda Birshteyn, 1960