Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Maxillopoda Dahl, 1956 see Subphylum Pancrustacea Zrzavý et al., 1997 Subclass Tantulocarida Boxshall & Lincoln, 1983 - tantulocarids Genus Microdajus Greve, 1965