Kingdom Protoctista Hogg, 1860
   Phylum Myxozoa Grassé, 1970, incertae sedis - myxozoans see Subphylum Myxozoa Grassé, 1970
     Class Actinosporea Noble, 1980 [monotypic] see Class Myxosporea Bütschli, 1881
       Order Actinomyxida Štolc, 1899
         Family Tetractinomyxidae Poche, 1913, nom. inq. [monotypic]
           1 Genus Tetractinomyxon Ikeda, 1912