Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Spumellaria Ehrenberg, 1875
       Order Cancelliata Afanasieva & Amon, 2003
         1 Family †Haplentactiniidae Nazarov, 1980
         2 Family †Polyentactiniidae Nazarov, 1975
         3 Family †Pentactinocarpidae Dumitrica, 1978
         4 Family Orosphaeridae Haeckel, 1887