Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Nassellaria Ehrenberg, 1847
       Order Cyrtidinata Haeckel, 1862
         Superfamily Acropyramidoidea Haeckel, 1881
           Family Lampromitridae Haeckel, 1881
             Subfamily Lithocampaninae Petrushevskaya, 1981
               1 Genus †Acidnomelos Foreman, 1968
               2 Genus Botryopera Haeckel, 1887
               3 Genus Ceratarachnium Haeckel, 1887 see Genus Cornutellium Haeckel, 1881
               4 Genus Cornutanna Haeckel, 1881
               5 Genus Cornutella Ehrenberg, 1839
               6 Genus Cornutosa Haeckel, 1881
               7 Genus Cornutura Haeckel, 1881
               8 Genus Lithocampana Clark & Campbell, 1942
               9 Genus Trisulcus Popofsky, 1913, nom. illeg.