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
         Form genus Spelaeopogon Borzì (1907) see Genus Spelaeopogon Borzì 1907