Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Biota
           Domain Bacteria Woese et al. 1990
             Phylum Acidobacteria Thrash and Coates 2012
               Class Acidobacteriaᵀ Cavalier-Smith 2002
                 1 Genus Bryobacter Kulichevskaya et al. 2010, incertae sedis [monotypic]
                 2 Order Acidobacterialesᵀ Cavalier-Smith 2002 [monotypic]