Phylum Arthropoda Siebold, 1848 - arthropods
   Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
     Class Malacostraca Latreille, 1802
       Subclass Eumalacostraca Grobben, 1892
         Superorder Peracarida Calman, 1904
           Order Isopoda Latreille, 1817 - isopods
             1 Suborder Phreatoicidea Stebbing, 1893
             2 Suborder Anthuridea Monod, 1922
             3 Suborder Microcerberidea Lang, 1961
             4 Suborder Flabellifera Sars, 1882
             5 Suborder Asellota Latreille, 1802
             6 Suborder Calabozoida van Lieshout, 1983 see Suborder Calabozoidea van Lieshout, 1983
             6.0 Suborder "Calabazoida" nom. null. see Suborder Calabozoida van Lieshout, 1983
             7 Suborder Valvifera Sars, 1882
             8 Suborder Epicaridea Latreille, 1831
             9 Suborder Oniscidea Latreille, 1802