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 Asellota Latreille, 1802
               Superfamily Janiroidea Sars, 1897
                 01 Family Acanthaspidiidae Menzies, 1962
                 02 Family Dendrotiidae Vanhöffen, 1914 see Family Dendrotionidae Vanhoeffen, 1914
                 03 Family Desmosomatidae G.O. Sars, 1899
                 04 Family Echinothambematidae Menzies, 1956
                 05 Family Haplomunnidae Wilson, 1976
                 06 Family Haploniscidae Hansen, 1916
                 07 Family Ischnomesidae Hansen, 1916
                 08 Family Janirellidae Menzies, 1956
                 09 Family Janiridae G.O. Sars, 1897
                 10 Family Joeropsididae (Nordenstam, 1933) Menzies, 1962
                 11 Family Katianiridae Svavarsson, 1987
                 12 Family Macrostylidae Hansen, 1916
                 13 Family Mesosignidae Schultz, 1969
                 14 Family Microparasellidae Karaman, 1933
                 15 Family Mictosomatidae Wolff, 1965
                 16 Family Munnidae G.O. Sars, 1897
                 17 Family Munnopsididae Sars, 1869 see Family Munnopsidae Lilljeborg, 1864
                 18 Family Nannoniscidae Hansen, 1916
                 19 Family Paramunnidae Vanhöffen, 1914
                 20 Family Pleurocopidae Fresi & Schiecke, 1972
                 21 Family Santiidae Wilson, 1987
                 22 Family Thambematidae Stebbing, 1913