Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Nassellaria Ehrenberg, 1847
       Order Cyrtidinata Haeckel, 1862
         Superfamily Stichocapsoidea Haeckel, 1881
           Family †Hsumidae Afanasieva & Amon, 2005, nom. null. see Family Hsuidae Pessagno & Whalen, 1982
             1 Genus †Combusta Yeh, 1987
             2 Genus †Fantus Yeh, 1987
             3 Genus †Hsuum Pessagno, 1977
             4 Genus †Linaresia El Kadiri, 1992, nom. illeg.
             5 Genus †Parahsuum Yao, 1982
             6 Genus †Pseudohsuum Zhang, 1990
             7 Genus †Semihsuum Pessagno, Blome & Hull, 1993
             8 Genus †Transhsuum Takemura, 1986