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 †Helioentactiniinae Afanasieva, 1999 [monotypic]
             1 Genus †Helioentactinia Nazarov, 1975, nom. dub.