Phylum Tardigrada Doyère, 1840 - tardigrades
   Class Eutardigrada Richters, 1926 - naked tardigrades
     Order Parachela Schuster, Nelson, Grigarick & Christenberry, 1980
       Family Hypsibiidae Pilato, 1969
         Genus Diphascon Plate, 1888
           Subgenus Diphascon (Plate) Pilato
             1 Diphascon brevipes (Marcus, 1936)
             2 Diphascon bullatum J. Murray, 1905
             3 Diphascon pingue (Marcus, 1936)
             4 Diphascon recamieri Richters, 1911
             5 Diphascon sexbullatum Ito