Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Copepoda H. Milne-Edwards, 1840 see Subclass Copepoda H. Milne-Edwards, 1840 Order Mormonilloida Boxshall, 1979