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 Platysporina Kudo, 1919 [monotypic] Family Myxobolidae Thélohan, 1892 Genus Spirosuturia Chen & Hsieh, 1984