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 Stigonemataceae Borzì (1886), nom. cons.
                         1.1 Genus Capsosira Kützing ex É. Bornet & C. Flahault (1886)
                         1.2 Genus Desmosiphon A. Borzì (1907)
                         1.3 Genus Letestuinema Frémy (1930)
                         1.4 Genus Nematoplaca Geitler (1933)
                         1.5 Genus Stauromatonema Frémy (1930)
                         2 Genus Doliocatella Geitler (1933)
                         3.1 Genus Cyanobotrys L. Hoffman (1991)
                         3.2 Genus Homoeoptyche H. Skuja (1944)
                         3.3 Genus Pulvinularia Borzì (1916)
                         3.4 Genus Stigonemaᵀ C.Agardh ex Bornet & Flahault (1887)