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
                   [Family "Family 4.1" nom. inval.]
                     [Genus "Aphanizomenon" Morren ex Bornet and Flahault 1886] see Genus Aphanizomenon C. Morren ex É. Bornet & C. Flahault 1886-1888[1888] [ICBN]
                       1 ["Aphanizomenon flos-aquae" Ralfs ex Bornet and Flahault 1886 nom. inval.] see Aphanizomenon flos-aquae (L.) J. Ralfs ex Bornet & Flahault 1888 [ICBN]