Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum Terrabacteria Battistuzzi et al. 2004
               Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria
                 Class "Cyanobacteria" Cavalier-Smith, 2002
                   Subclass Nostocophycideae
                     Order Nostocalesᵀ Borzì (1914)
                       Family "Symphyonemataceae" Hoffmann, Komárek & Kaštovský (2005)
                         01 Genus Adrianema De Toni (1936) [monotypic]
                         02 Genus Brachytrichia G. Zanardini ex É. Bornet & C. Flahault 1886-1888[1886]
                         03 Genus Herpyzonema Weber-van Bosse (1913)
                         04 Genus Iyengariella Desikachary 1953 [ICBN]
                         05 Genus Mastigocladopsis T.V. Desikachary & M.O.P. Iyengar (1946)
                         06 Genus Parenchymorpha C.K. Tseng & M. Hua (1984)
                         07 Genus Symphyonemaᵀ C.C. Jao (1944)
                         08 Genus Symphyonemopsis G. Tiwari & A. Mitra (1969)
                         09 Genus Umezakia M. Watanabe (1987)
                         10 Genus Voukiella Ercegovic (1925)