Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea BrĂ¼nnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Malacostraca Latreille, 1802 Subclass Phyllocarida Packard, 1879 - leptostracans 1 Order Leptostraca Claus, 1880 - sea fleas