Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota J.R. Wagner, 2004 [J. Wiemann et al., 2020]
           Domain Bacteria (Haeckel, 1894) C.R. Woese et al., 1990 [paraphyletic?]
             Superphylum "Proteobacteria" J.W. Craig et al., 2010
               Phylum "Gammaproteobacteria" Garrity et al., 2005 [monotypic]
                 Class Gammaproteobacteriaᵀ Garrity et al., 2005
                   Order Aeromonadales Martin-Carnahan & Joseph, 2005
                     Family Aeromonadaceaeᵀ Colwell et al., 1986
                       Genus Oceanisphaera Romanenko et al., 2003
                         1 Oceanisphaera litoralisᵀ Romanenko et al., 2003
                         2 Oceanisphaera donghaensis Park et al., 2006
                         3 Oceanisphaera ostreae Choi et al., 2011
                         4 Oceanisphaera arctica Srinivas et al., 2012
                         5 Oceanisphaera sediminis Shin et al., 2012
                         6 Oceanisphaera profunda Xu et al., 2014