Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Spumellaria Ehrenberg, 1875
       Order Saturnalata Afanasieva & Amon, 2005
         Family Saturnalidaeᵀ Deflandre, 1953
           Subfamily Saturnalinae Deflandre, 1953
             [Genus †Pseudoacanthocircus Tekin, 1999, nom. null.] see Genus Pseudacanthocircus Kozur & Mostler, 1990