Kingdom Protoctista Hogg, 1860 Phylum Myxozoa Grassé, 1970, incertae sedis - myxozoans see Subphylum Myxozoa Grassé, 1970 Class Myxosporea Bütschli, 1881 Order Bivalvulida Shulman, 1959 1 Suborder Sphaeromyxina Lom & Noble, 1984 [monotypic] 2 Suborder Variisporina Lom & Noble, 1984 3 Suborder Platysporina Kudo, 1919 [monotypic]