Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Sphaerellaria Haeckel, 1881
       Order Hexalonchata Haeckel, 1881
         Family Hexalonchidae Haeckel, 1881
           Genus Nanina Kozur & Mostler, 1982, nom. illeg. see Genus Pentactinosphaera Nagata & Nishimura, 1983