[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Nostocales Borzì (1914) see Order Nostocales corrig. Borzì 1914
     Family Symphyonemataceae Hoffmann, Komárek & Kaštovský (2005), nom. inval. see Family Scytonemataceae A.B.Frank (1886)
       01 Genus Adrianema De Toni (1936), nom. illeg. see Genus Lithonema Ercegović 1929
       02 Genus Brachytrichia G. Zanardini ex Bornet & Flahault (1886) see Genus Brachytrichia Zanardini ex Bornet and Flahault 1886
       03 Genus Herpyzonema Weber-van Bosse (1913) see Genus Herpyzonema Weber-van Bosse 1913
       04 Genus Ifinoe orth. inval. see Genus Iphinoe V. Lamprinou & A. Pantazidou (2011), nom. inval.
       05 Genus Iyengariella Desikachary (1953) see Genus Iyengariella Desikachary 1953
       06 Genus Loriellopsis Hernández-Mariné & Canals (2011), nom. inval. see Genus Loriellopsis Hernández-Mariné and Canals 2011 nom. inval.
       07 Genus Mastigocladopsis M.O.P. Iyengar & Desikachary (1946) see Genus Mastigocladopsis Iyengar and Desikachary 1946
       08 Genus Parenchymorpha C.K. Tseng & M. Hua (1984) see Genus Parenchymorpha Tseng and Hua 1984
       09 Genus Symphyonema C.C. Jao (1944) see Genus Symphyonema Jao 1944
       10 Genus Symphyonemopsis G. Tiwari & A. Mitra (1969) see Genus Symphyonemopsis Tiwari and Mitra 1969
       11 Genus Voukiella Ercegović (1925) see Genus Voukiella Ercegović 1925