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 †Entactiniidae Riedel, 1967
           Subfamily †Entactiniinae Riedel, 1967
             1 Genus †Altaiesphaera Obut & Iwata, 2000
             2 Genus †Apophysisphaera Won, 1997
             3 Genus †Archaeocenosphaera Obut & Iwata, 2000, nom. illeg.
             4 Genus †Borisella Afanasieva, 2000
             5 Genus †Entactinia Foreman, 1963
             6 Genus †Futobari Furutani, 1990