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
           01 Family Myxidiidae Thélohan, 1892
           02 Family Ortholineidae Lom & Noble, 1984
           03 Family Sinuolineidae Shulman, 1959
           04 Family Fabesporidae Naidenova & Zaika, 1969
           05 Family Ceratomyxidae Doflein, 1899
           06 Family Sphaerosporidae Davis, 1917
           07 Family Chloromyxidae Thélohan, 1892
           08 Family Auerbachiidae Evdokimova, 1973
           09 Family Alatosporidae Shulman et al., 1979
           10 Family Parvicapsulidae Shulman, 1953