Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Sphaerellaria Haeckel, 1881
       1 Order †Inaniguttata Nazarov & Ormiston, 1984
       2 Order Entactiniata Kozur & Mostler, 1982
       3 Order †Anakrusata Nazarov, 1977 [monotypic]
       4 Order Hexalonchata Haeckel, 1881
       5 Order Sphaerellata Haeckel, 1887
       6 Order Actinommata Haeckel, 1862