Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Sphaerellaria Haeckel, 1881
       Order Hexalonchata Haeckel, 1881
         Family Hexalonchidae Haeckel, 1881
           Genus Heterosoma Mast, 1910, nom. illeg. see Genus Anomalosoma Loeblich & Tappan, 1961