Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Rozellomycota Doweld (2013)
     Class Microsporidea Corliss & Levine, 1963
       Order Chytridiopsida Weiser, 1974
         1 Family Burkeidae Sprague, 1977 [monotypic]
         2 Family Buxtehudiidae nom. inval. see Family Buxtehudeidae Larsson, 1980
         3 Family Chytridiopsidae Sprague, Ormières & Manier, 1972
         4 Family Enterocytozoonidae Cali & Owen
         5 Family Hesseidae Ormières & Sprague, 1973 [monotypic]