Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777 Class Branchiopoda Latreille, 1817 - branchiopods Order Cladocera Latreille, 1829 - water fleas see Suborder Cladocera Latreille, 1829 Genus Leptodora Lilljeborg, 1861