Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class †Aculearia Afanasieva, 1999
       Order Fasciculata Afanasieva & Amon, 2003
         1 Family †Palacantholithidae Kozur & Mostler, 1981
         2 Family Plagiacanthidae Hertwig, 1879
         3 Family †Xiphocladiellidae Nazarov, 1984
         4 Family †Palaeoscenidiidae Riedel, 1967