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 Geminocystaceae Tuji, Yamaguchi & Niiyama (2021)] see Family Geminocystaceae Tuji et al. 2021
                       1 ?[Genus Microcrocis P.G. Richter (1892)] see Genus Microcrocis Richter 1892
                       2 [Genus Annamia Nguyen (2013)] see Genus Annamia Nguyen 2013
                       3 [Genus Cyanobacterium Rippka & Cohen-Baz. (2022)] see Genus Cyanobacterium Rippka and Cohen-Bazire 2022
                       4 [Genus Geminobacterium Ramos, Brito & Kaštovský (2017)] see Genus Geminobacterium Ramos et al. 2017
                       5 [Genus Geminocystisᵀ Korelusová, Kaštovský & Komárek (2009)] see Genus Geminocystis Korelusová et al. 2009
                       6 [Genus Picosynechococcus Komárek, J.R.Johans. & Strunecký (2020)] see Genus Picosynechococcus Komárek et al. 2020