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 Amphipoda Latreille, 1816 - amphipods
             Suborder Hyperiidea Milne Edwards, 1830
               Infraorder Physocephalata Bowman & Gruner, 1973
                 Superfamily Phronimoidea Rafinesque, 1815
                   1 Family Dairellidae Bovallius, 1887
                   2 Family Hyperiidae Dana, 1853
                   3 Family Phronimidae Rafinesque, 1815
                   4 Family Phrosinidae Dana, 1853