Phylum Arthropoda Siebold, 1848 - arthropods
   Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
     Class Malacostraca Latreille, 1802
       Subclass Eumalacostraca Grobben, 1892
         Superorder Eucarida Calman, 1904
           Order Decapoda Latreille, 1802 - decapods
             Suborder Pleocyemata Burkenroad, 1963
               Infraorder Caridea Dana, 1852 - caridean and procaridean shrimps
                 Superfamily Nematocarcinoidea Smith, 1884
                   1 Family Eugonatonotidae Chace, 1937
                   2 Family Nematocarcinidae Smith, 1884
                   3 Family Rhynchocinetidae Ortmann, 1890
                   4 Family Xiphocarididae Ortmann, 1895