Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Stauraxonaria Afanasieva & Amon, 2005
       Order Oviformata Afanasieva & Amon, 2005
         1 Family †Spongolonchidaeᵀ Afanasieva & Amon, 2005
         2 Family †Staurodruppidae Afanasieva, 2000
         3 Family †Gomberellidae Kozur & Mostler, 1981
         4 Family Archaeospongoprunidae Pessagno, 1973
         5 Family †Phaseliformidae Pessagno, 1972