Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 2024
             Kingdom Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Cyanobacteriota Oren et al. 2022
                 Class Chroococcophyceaeᵀ Hollerbach et al. 1953
                   Order Nostocales corrig. Borzì 1914
                     Family Rivulariaceae Frank 1886
                       01 Genus Ariasmontanoa Molinari and Guiry 2021
                       02 Genus Dichothrix Zanardini ex Bornet and Flahault 1886
                       03 Genus Gaillardotella Bory ex Kuntze 1898
                       04 Genus Isactis Thuret ex Bornet and Flahault 1886
                       05 Genus Kordeofistula Molinari and Guiry 2021
                       06 Genus Mastigonema Fischer ex Frank 1886
                       07 Genus Microchaete Thuret ex Bornet and Flahault 1886 nom. cons.
                       08 Genus Nunduva González-Resendiz et al. 2018
                       09 Genus Phyllonema Alvarenga et al. 2016
                       10 Genus Gardnerula De Toni 1936
                       11 Genus Primorivularia Edhorn 1973
                       12 Genus Rivulariaᵀ Agardh ex Bornet and Flahault 1886 nom. cons.
                       13 Genus Sacconema Borzì ex Bornet and Flahault 1886