[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Oscillatoriales Schaffner (1922) [paraphyletic] see Order Oscillatoriales Schaffner 1922
     Family Homoeotrichaceae A.A. Elenkin (1949) see Family Microcoleaceae Komárek, J. Kaštovský, J. Mareš & J.R.Johans. (2014), nom. illeg.
       1 Genus Ammatoidea W.West & G.S.West (1897) see Genus Ammatoidea West and West 1897
       2 Genus Homoeothrix (G. Thuret ex Bornet & Flahault) O. Kirchner (1898), nom. cons. see Genus Homoeothrix (Thuret ex Bornet and Flahault 1886) Kirchner 1898 nom. cons.
       3 Genus Phormidiochaete Komárek (2001) see Genus Phormidiochaete Komárek 2001
       4 Genus Tildenia Kossinskaja (1926), nom. illeg. see Genus Setchelliella G. De Toni (1936)