Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Rozellomycota Doweld (2013)
     Class Microsporidea Corliss & Levine, 1963
       Order Glugeida Issi, 1986
         Family Tuzetiidae Sprague, Tuzet & Maurand, 1977
           1 Genus Nelliemelba Larsson, 1983 [monotypic]
           2 Genus Pankovaia Simakova, Tokarev & Issi, 2009 [monotypic]
           3 Genus Paratuzetia Poddubnaya, Tokarev & Issi, 2006 [monotypic]
           4 Genus Tuzetia Maurand, Fize, Fenwick & Michel, 1971