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 "Proteobacteria" Craig et al. 2010
               Phylum "Alphaproteobacteria" Garrity et al., 2006 [monotypic]
                 Class Alphaproteobacteriaᵀ Garrity et al. 2006
                   Order Rhizobiales Kuykendall 2006
                     Family Bradyrhizobiaceae Garrity et al. 2006
                       Genus Salinarimonas Liu et al. 2010
                       Genus Tardiphaga De Meyer et al. 2012
                       01 Genus Bradyrhizobiumᵀ Jordan 1982
                       02 Genus Afipia Brenner et al. 1992
                       03 Genus Blastobacter Zavarzin 1961 (Approved Lists 1980)
                       04 Genus Bosea Das et al. 1996
                       05 Genus Nitrobacter Winogradsky 1892 (Approved Lists 1980)
                       06 Genus Oligotropha Meyer et al. 1994 [monotypic]
                       07 Genus Rhodoblastus Imhoff 2001
                       08 Genus Rhodopseudomonas Czurda and Maresch 1937 (Approved Lists 1980)