[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Gammaproteobacteria Garrity et al. 2005
         Order Oceanospirillales Garrity et al. 2005
           Family Oceanospirillaceae Garrity et al. 2005
             Genus Oceanospirillum Hylemon et al. 1973 (Approved Lists 1980)
               [Oceanospirillum beijerinckii] (Williams and Rittenberg 1957) Hylemon et al. 1973 (Approved Lists 1980)
                 1 Oceanospirillum beijerinckii subsp. beijerinckiiᵀ (Williams and Rittenberg 1957) Pot et al. 1989
                 2 Oceanospirillum beijerinckii subsp. pelagicum (Terasaki 1973) Pot et al. 1989