Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea BrĂ¼nnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Ostracoda Latreille, 1802 - ostracods Subclass Myodocopa Sars, 1866 Order Halocyprida Dana, 1853 Suborder Cladocopina Sars, 1865 1 Superfamily Polycopoidea Sars, 1865