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
                 Class Cytophagia Nakagawa 2012 [monotypic]
                   Order Cytophagalesᵀ Leadbetter 1974 (Approved Lists 1980)
                     1 Genus Chryseolinea Kim et al. 2013, incertae sedis [monotypic]
                     2 Genus Luteivirga Haber et al. 2013, incertae sedis [monotypic]
                     3 Genus Ohtaekwangia Yoon et al. 2011, incertae sedis
                     4.1 Family Cytophagaceaeᵀ Stanier 1940 (Approved Lists 1980)
                     4.2 Family Cyclobacteriaceae Nedashkovskaya and Ludwig 2012
                     5 Family Catalimonadaceae Choi et al. 2013 [monotypic]
                     6.1 Family Flammeovirgaceae Yoon et al. 2011
                     6.2 Family Mooreiaceae Choi et al. 2013 [monotypic]
                     7 Family Rhodothermaceae Ludwig et al. 2012