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 Aeromonadales Martin-Carnahan and Joseph 2005
                     Family Aeromonadaceaeᵀ Colwell et al. 1986
                       1 Genus Aeromonasᵀ Stanier 1943 (Approved Lists 1980)
                       2 Genus Oceanimonas corrig. Brown et al. 2001
                       3 Genus Oceanisphaera Romanenko et al. 2003
                       4 Genus Tolumonas Fischer-Romero et al. 1996 [monotypic]
                       5 Genus Zobellella Lin and Shieh 2006