organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     other
       Phylum Haplosporidia Caullery & Mesnil, 1899 see Order Haplosporida M. Caullery & F. Mesnil, 1899
         Class Haplosporea M. Caullery, 1953 see Order Haplosporida M. Caullery & F. Mesnil, 1899
           Order Haplosporida M. Caullery & F. Mesnil, 1899
             1 Family Haplosporidiidaeᵀ Sprague, 1979
             2 Family Urosporidiidae
             3 ?Family Claustrosporidiidae Larsson, 1987
             4 ?Family Nephridiophagidae Sprague, 1970 see Family Nephridiophagaceae R. Radek, Letcher, Wijayaw., P.M.Kirk & K.D.Hyde (2018)
             5 ?Genus Bonamia Pichot et al., 1980
             6 ?Genus Mikrocytos Farley, Wolf & Elston, 1988