[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     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]
             Aphanizomenon flos-aquae Ralfs ex Bornet and Flahault 1886 nom. inval. see Aphanizomenon flos-aquae (L.) J. Ralfs ex Bornet & Flahault 1888 [ICBN]