Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Mystacocarida Pennak & Zinn, 1943 see Subclass Mystacocarida Pennak & Zinn, 1943