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 2.1" nom. inval.]
                     1 [Genus "Cyanocystis" [ICNB]] see Genus Cyanocystis A. Borzì 1882 [ICBN]
                     2 [Genus "Dermocarpella" [ICNB]] see Genus Dermocarpella Lemmerm. 1907 [ICBN]
                     3 [Genus "Stanieria" [ICNB]] see Genus Stanieria Komárek & Anagnostidis 1986 [ICBN]
                     4 [Genus "Xenococcus" [ICNB]] see Genus Xenococcus G. Thuret in É. Bornet & G. Thuret 1880 [ICBN]