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 Chlorobi Iino et al. 2010
                 Class Chlorobeaᵀ Cavalier-Smith 2002 [monotypic]
                   Order Chlorobialesᵀ Gibbons and Murray 1978 (Approved Lists 1980) [monotypic]
                     Family Chlorobiaceaeᵀ Copeland 1956 (Approved Lists 1980)
                       Genus Chlorobiumᵀ Nadson 1906 (Approved Lists 1980)
                         1 Chlorobium clathratiforme (Szafer 1911) Imhoff 2003
                         2 Chlorobium limicola Nadson 1906 (Approved Lists 1980)
                         3 Chlorobium luteolum (Schmidle 1901) Imhoff 2003
                         4 Chlorobium phaeobacteroides Pfennig 1968 (Approved Lists 1980)
                         5 Chlorobium phaeovibrioides Pfennig 1968 (Approved Lists 1980)