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 Cyanobacteria Garcia-Pichel et al. (2020)] see Phylum Cyanobacteriota Oren et al. 2022
                 [Class Cyanophyceae Hauck (1885)] see Class Chroococcophyceae Hollerbach et al. 1953
                   [Order Chroococcales Ardissone (1887)] see Order Chroococcales corrig. Ardissone 1887
                     [Family Pleurocapsaceae Geitler (1925), sedis mutabilis] see Family Hyellaceae Borzì (1914)
                       [Genus †Palaeopleurocapsa Knoll, Barghoorn & Golubić (1975)] see Genus Palaeopleurocapsa Knoll et al. 1975
                       01 ?[Genus Chamaecalyx Komárek & Anagn. (1986)] see Genus Chamaecalyx Komárek and Anagnostidis 1986
                       02 ?[Genus Chroococcidium L. Geitler (1933)] see Genus Chroococcidium Geitler 1933
                       03 ?[Genus Cyanocystis A. Borzì (1882)] see Genus Cyanocystis Borzì 1882
                       04 ?[Genus Cyanoderma Weber-van Bosse (1887)] see Genus Cyanoderma Weber-van Bosse 1887
                       05 ?[Genus Cyanosaccus K.J. Lukas & S. Golubić (1981)] see Genus Cyanosaccus Lukas and Golubić 1981
                       06 ?[Genus Dalmatella A. Ercegović (1929)] see Genus Dalmatella Ercegović 1929
                       07 ?[Genus Dermocarpella Lemmerm. (1907)] see Genus Dermocarpella Lemmermann 1907
                       08 ?[Genus Epilithia A. Ercegović (1932), nom. illeg.] see Genus Epilithia Ercegović 1932 nom. illeg.
                       09 ?[Genus Hormathonema A. Ercegović (1929)] see Genus Hormathonema Ercegović 1929
                       10 ?[Genus Hydrococcus Kütz. (1833), nom. cons. prop.] see Genus Hydrococcus Kützing 1833 nom. cons.
                       11 ?[Genus Myxohyella L. Geitler (1925)] see Genus Myxohyella Geitler 1925
                       12 ?Genus Nisada M. Gold-Morgan, L. González-Resendiz, H. León-Tejera & G. Montejano (2015)
                       13 ?[Genus Onkonema L. Geitler (1933)] see Genus Onkonema Geitler 1933
                       14 ?[Genus Podocapsa A. Ércegovic (1931), nom. illeg.] see Genus Hydropodocapsa E.A. Molinari-Novoa & M.D. Guiry (2021)
                       15 ?[Genus Radaisia C. Sauvageau (1895)] see Genus Radaisia Sauvageau 1895
                       16 ?[Genus Sinaiella L. Gruia (1965)] see Genus Sinaiella Gruia 1965
                       17 ?[Genus Solentia A. Ercegović (1927)] see Genus Solentia Ercegović 1927
                       18 ?[Genus Tryponema A. Ercegović (1929)] see Genus Tryponema Ercegović 1929
                       19 ?[Genus Xenotholos Gold-Morgan, Montejano & Komárek (1994)] see Genus Xenotholos Gold-Morgan et al. 1994
                       20 [Genus Chondrocystis Lemmerm. (1899)] see Genus Chondrocystis Lemmermann 1899
                       21 [Genus Chroococcopsis L. Geitler (1925)] see Genus Chroococcopsis Geitler 1925
                       22 [Genus Foliisarcina D.O. Alvarenga, J. Rigonato, L.H.Z. Branco, I.S. Melo & M.F. Fiore (2016)] see Genus Foliisarcina Alvarenga et al. 2016
                       23 [Genus Hyella Bornet & Flahault (1888)] see Genus Hyella Bornet and Flahault 1888
                       24 [Genus Myxosarcina H. Printz (1921)] see Genus Myxosarcina Printz 1921
                       25 [Genus Odorella Shalygin, Huang, Allen, Burkholder & Zimba (2019)] see Genus Odorella Shalygin et al. 2019
                       26 [Genus Pleurocapsaᵀ Thur. (1885)] see Genus Pleurocapsa Thuret 1885
                       27 [Genus Stanieria Komárek & Anagn. (1986)] see Genus Stanieria Komárek and Anagnostidis 1986
                       28 [Genus Xenococcus G. Thuret (1880) [polyphyletic]] see Genus Xenococcus Thuret 1880