Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Nassellaria Ehrenberg, 1847
       1 Order †Pylomariata Afanasieva, 1999
       2 Order Spyridinata Ehrenberg, 1847
       3 Order Cyrtidinata Haeckel, 1862