Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Spumellaria Ehrenberg, 1875
       Order †Prodigiata Afanasieva & Amon, 2005
         1 Family †Eptingiidaeᵀ Dumitrica, 1978
         2 Family †Multiarcusellidae Kozur & Mostler, 1979