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 Oniscidea Latreille, 1802
               1 Family Dubioniscidae Schultz, 1995
               2 Family Helelidae Ferrara, 1977
               3 Family Irmaosidae Ferrara & Taiti, 1983
               4 Family Pseudarmadillidae Vandel, 1973 see Family Delatorreidae Verhoeff, 1938d
               5 Family Scleropactidae Verhoeff, 1938
               6 Infraorder Tylomorpha Vandel, 1943
               7 Infraorder Ligiamorpha Vandel, 1943