Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Rozellomycota Doweld (2013)
     Class Microsporidea Corliss & Levine, 1963
       Order Chytridiopsida Weiser, 1974
         Family Buxtehudiidae nom. inval. see Family Buxtehudeidae Larsson, 1980
           1 Genus Jiroveciana Larsson, 1981 [monotypic]
           2 Genus Buxtehudea Larsson, 1980 [monotypic]