[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Chroococcales Ardissone (1887) [paraphyletic] see Order Chroococcales corrig. Ardissone 1887
     Family Cyanothrichaceae Elenkin (1947), nom. illeg., orth. inval. [monotypic] see Family Cyanotrichaceae Elenkin (1947), nom. illeg.
       1 Genus Johannesbaptistia G. De Toni (1934) see Genus Johannesbaptistia De Toni 1934