Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Collodaria Haeckel, 1881
       1 Family Sphaerozoidae Haeckel, 1862
       2 Family Collosphaeridae Müller, 1858
       3 Family Thalassosphaeridae Haeckel, 1862 see Family Sphaerozoidae Haeckel, 1862