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 Flabellifera Sars, 1882
               01 Family Aegidae White, 1850
               02 Family Ancinidae Dana, 1852
               03 Family Anuropidae Stebbing, 1893
               04 Family Bathynataliidae Kensley, 1978
               05 Family Cirolanidae Dana, 1852
               06 Family Corallanidae Hansen, 1890
               07 Family Cymothoidae Leach, 1814
               08 Family Gnathiidae Leach, 1814
               09 Family Hadromastacidae N.L. Bruce & H.-G. Müller, 1991
               10 Family Keuphyliidae Bruce, 1980
               11 Family Limnoriidae White, 1850
               12 Family Phoratopodidae Hale, 1925
               13 Family Plakarthriidae Hansen, 1905
               14 Family Protognathiidae Wägele & Brandt, 1988
               15 Family Serolidae Dana, 1852
               16 Family Sphaeromatidae Latreille, 1825
               17 Family Tecticepitidae Iverson, 1982 see Family Tecticipitidae Iverson, 1982
               18 Family Tridentellidae N.L. Bruce, 1984