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 Oscillatoriophycideae
                     Order Chroococcales Wettst. (1924)
                       Family Prochloraceae R.A. Lewin (1977) [monotypic]
                         Genus Prochloronᵀ R.A. Lewin 1977 [ICBN] [monotypic]
                           Prochloron didemniᵀ (R.A. Lewin 1975) R.A. Lewin 1977 [ICBN]