Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Sphaerellaria Haeckel, 1881
       Order Entactiniata Kozur & Mostler, 1982
         Family †Astroentactiniidae Nazarov & Ormiston, 1985
           Subfamily †Multisphaerinae Nazarov & Afanasieva, 2000
             1 Genus †Calella Won, 1983
             2 Genus †Multisphaera Nazarov & Afanasieva, 2000