Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Rozellomycota Doweld (2013)
     Class Microsporidea Corliss & Levine, 1963
       Order Meiodihaplophasida Sprague, Becnel & Hazard, 1992
         1 Family Amblyosporidae Weiser, 1977
         2 Family Burenellidae Jouvenaz & Hazard, 1978
         3 Family Cylindrosporidae Issi & Voronin
         4 Family Duboscqiidae Sprague, 1977
         5 Family Pereziidae Loubès, Maurand, Comps & Campillo, 1977
         6 Family Striatosporidae Issi & Voronin [monotypic]
         7 Family Thelohaniidae Hazard & Oldacre, 1975