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 Borzinemataceae L. Geitler (1942) see Family Borzinemataceae Geitler 1942
         1 Form genus Borzinema G.De Toni (1936) see Genus Borzinema De Toni 1936
         2 Form genus Handeliella Skuja (1937) see Genus Handeliella Skuja 1937
         3 Form genus Schmidleinema G.De Toni (1936) see Genus Schmidleinema De Toni 1936
         4 Form genus Seguenzaea Borzì (1907) see Genus Seguenzaea Borzì 1907
         5 Form genus Spelaeopogon Borzì (1907) see Genus Spelaeopogon Borzì 1907