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 Valvifera Sars, 1882
               01 Family Antarcturidae Poore, 2001
               02 Family Arcturidae Dana, 1849
               03 Family Arcturididae Poore, 2001
               04 Family Austrarcturellidae Poore & Bardsley, 1992
               05 Family Chaetiliidae Dana, 1849
               06 Family Holidoteidae Wägele, 1989
               07 Family Holognathidae G. Thomson, 1904
               08 Family Idoteidae Samouelle, 1819
               09 Family Pseudidotheidae Ohlin, 1901
               10 Family Rectarcturidae Poore, 2001
               11 Family Xenarcturidae E.M. Sheppard, 1957