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 Oceanospirillales Garrity et al. 2005
                     Family Oceanospirillaceaeᵀ Garrity et al. 2005
                       Genus Neptunomonas Hedlund et al. 1999
                         1 Neptunomonas naphthovoransᵀ Hedlund et al. 1999
                         2 Neptunomonas japonica Miyazaki et al. 2008
                         3 Neptunomonas antarctica Zhang et al. 2010
                         4 Neptunomonas concharum Lee et al. 2012
                         5 Neptunomonas qingdaonensis Liu et al. 2013
                         6 Neptunomonas acidivorans Yang et al. 2014
                         7 Neptunomonas phycophila Frommlet et al. 2015