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 Oscillatoriophycideae
                     Order Chroococcales Wettst. (1924)
                       Family Entophysalidaceae Geitler (1925)
                         01 Genus Cyanoarbor Wang (1989)
                         02 Genus Cyanodermatium L. Geitler (1933)
                         03 Genus Cyanostylon L. Geitler 1927[1928]
                         04 Genus Dzensia N.N. Woronichin (1929)
                         05 Genus Hormathonema A. Ercegovic (1929)
                         06 Genus Johannesbaptistia G. De Toni (1934)
                         07 Genus Placoma P.K.A. Schousboe ex É. Bornet & G. Thuret (1876)
                         08 Genus Tryponema A. Ercegovic (1929)
                         09 Subfamily Entophysalidoideaeᵀ Komárek & Anagnostidis (1986)
                         10 Subfamily Siphononematoideae