Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Rozellomycota Doweld (2013)
     Class Microsporidea Corliss & Levine, 1963
       Order Dissociodihaplophasida Sprague, Becnel & Hazard, 1992
         Family Mrazekiidae Léger & Hesse, 1922
           1 Genus Agmasoma Hazard & Oldacre, 1975
           2 Genus Anostracospora Rode, Landes, Lievens, Flaven, Segard, Jabbour-Zahab, Michalakis, Agnew, Vivarés & Lenormand, 2013 [monotypic]
           3 Genus Euplotespora Fokin, Di Giuseppe, Erra & Dini, 2008 [monotypic]
           4 Genus Helmichia Larsson, 1982
           5 Genus Hrabyeia Lom & Dyková, 1990 [monotypic]
           6 Genus Jirovecia Weiser, 1977
           7 Genus Mrazekia Léger & Hesse, 1916
           8 Genus Rectispora Larsson, 1990 [monotypic]