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 Fibrobacteres-Chlorobi-Bacteroidetes (FCB) Gupta 2004
               Phylum Bacteroidetes Krieg et al. 2012
                 1 Genus Toxothrix Molisch 1925 (Approved Lists 1980), incertae sedis [monotypic]
                 2 Class Bacteroidiaᵀ Krieg 2012 [monotypic]
                 3 Class Flavobacteriia Bernardet 2012 [monotypic]
                 4.1 Class Sphingobacteriia Kämpfer 2012 [monotypic]
                 4.2 Class Cytophagia Nakagawa 2012 [monotypic]