Kingdom Protoctista Hogg, 1860
   Phylum Myxozoa Grassé, 1970, incertae sedis - myxozoans see Subphylum Myxozoa Grassé, 1970
     Class Myxosporea Bütschli, 1881
       Order Bivalvulida Shulman, 1959
         Suborder Variisporina Lom & Noble, 1984
           Family Sphaerosporidae Davis, 1917
             1 Genus Sphaerospora Thélohan, 1892
             2 Genus Wardia Kudo, 1919
             3 Genus Palliatus Shulman, Kovalyova & Dubina, 1979
             4 Genus Myxobilatus Davis, 1944
             5 Genus Hoferellus Berg, 1898