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 "Gammaproteobacteria" Garrity et al., 2005 [monotypic]
                 Class Gammaproteobacteriaᵀ Garrity et al. 2005
                   Order Cellvibrionales Spring et al. 2015
                     Family Cellvibrionaceaeᵀ Spring et al. 2015
                       Genus Cellvibrioᵀ (ex Winogradsky 1929) Blackall et al. 1986
                         Cellvibrio vulgaris (ex Stapp and Bortels 1934) Humphry et al. 2003