Domain Eucaryota
   Subdomain Amoebota Doweld (2001)
     Kingdom Mucorobiota Doweld (2001)
       Subkingdom Chytridiopsidobiotina Doweld (2001) [monotypic]
         Phylum Chytridiopsidomycota Doweld (2001)
           Class Nosematomycetes Doweld (2001)
             1 Subclass Cylindrosporomycetidae Issi & Voronin (1986)
             2 Subclass Nosematomycetidae Issi (1980)