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 Brucellaceae Breed et al. 1957 (Approved Lists 1980)
                       Genus Falsochrobactrum Kämpfer et al. 2013
                       1 Genus Brucellaᵀ Meyer and Shaw 1920 (Approved Lists 1980)
                       2 Genus Daeguia Yoon et al. 2008 [monotypic]
                       3 Genus Mycoplana Gray and Thornton 1928 (Approved Lists 1980)
                       4 Genus Ochrobactrum Holmes et al. 1988
                       5.1 Genus Pseudochrobactrum Kämpfer et al. 2006
                       5.2 Genus Paenochrobactrum Kämpfer et al. 2010