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 "Betaproteobacteria" Garrity et al., 2006 [monotypic]
                 Class Betaproteobacteriaᵀ Garrity et al. 2006
                   Order Neisseriales Tønjum 2006
                     Family Chromobacteriaceae Adeolu and Gupta 2013
                       Genus Chromobacteriumᵀ Bergonzini 1880 (Approved Lists 1980)
                         1 Chromobacterium aquaticum Young et al. 2008
                         2 Chromobacterium haemolyticum Han et al. 2008
                         3 Chromobacterium piscinae Kämpfer et al. 2009
                         4 Chromobacterium pseudoviolaceum Kämpfer et al. 2009
                         5 Chromobacterium subtsugae Martin et al. 2007
                         6 Chromobacterium vaccinii Soby et al. 2013
                         7 Chromobacterium violaceumᵀ Bergonzini 1880 (Approved Lists 1980)