Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Malacostraca Latreille, 1802 Subclass Eumalacostraca Grobben, 1892 Superorder †Eocarida (Brooks, 1962) Order †Eocaridacea Brooks, 1962 Order †Pygocephalomorpha Beurlen, 1930