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 Leptolyngbyales Strunecký & Mareš (2023) [paraphyletic]] see Order Leptolyngbyales Strunecký and Mareš 2023
                     [Family Trichocoleusaceae T.Mai & J.R.Johans. (2018), sedis mutabilis] see Family Trichocoleusaceae Mai and Johansen 2018
                       ?[Genus Sirocoleum Kütz. ex Gomont (1892)] see Genus Sirocoleum Kützing ex Gomont 1892