oxyphototroph prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
     Order Nostocales Borzì (1914) see Order Nostocales corrig. Borzì 1914
       Family Microchaetaceae Lemmermann (1907) see Family Rivulariaceae Frank (1886)
         Subfamily Tolypotrichoideae Komárek & Anagn. (1989)
           1 Form genus Coleodesmiopsis Dutt, Datta & Gupta (1983) see Genus Coleodesmiopsis corrig. Dutt et al. 1983
           2 Form genus Coleodesmium A. Borzì ex L. Geitler (1942) see Genus Coleodesmium Borzì ex Geitler 1942
           3 Form genus Hassallia M.J. Berkeley ex Bornet & Flahault (1886), nom. illeg. see Genus Tolypothrix Kützing ex Bornet and Flahault 1886
           4 Form genus Petalonema Berkeley ex Correns (1889) see Genus Petalonema Berkeley ex Correns 1889
           5 Form genus Tolypothrix Kütz. ex Bornet & Flahault (1886) see Genus Tolypothrix Kützing ex Bornet and Flahault 1886