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
             Suborder Epicaridea Latreille, 1831
               Superfamily Cryptoniscoidea Kossmann, 1880
                 1 Family Asconiscidae Bonnier, 1900
                 2 Family Cabiropidae Giard & Bonnier, 1887
                 3 Family Crinoniscidae Bonnier, 1900 see Family Cabiropidae Giard & Bonnier, 1887
                 4 Family Cryptoniscidae Kossmann, 1880
                 5 Family Cyproniscidae Bonnier, 1900
                 6 Family Fabidae Danforth, 1963
                 7 Family Hemioniscidae Bonnier, 1900
                 8 Family Podasconidae Bonnier, 1900