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 Nostochopsaceae Geitler (1925) see Family Hapalosiphonaceae Elenkin (1917), nom. cons.
         Form genus Mastigocladopsis M.O.P. Iyengar & Desikachary (1946) see Genus Mastigocladopsis Iyengar and Desikachary 1946