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 Letestuinema Frémy (1930) see Genus Letestuinema Frémy 1930