oxyphototroph prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
     Order Stigonematales Geitler (1925) see Order Nostocales Borzì (1914)
       Family Capsosiraceae L. Geitler (1925) see Family Capsosiraceae Geitler 1925
         Form genus Hyphomorpha A. Borzì (1916) see Genus Hyphomorpha Borzì 1916