prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   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 "Saccharospirillaceae" Garrity et al., 2003
             1 Genus Gynuella Chung et al. 2015
             2 Genus Saccharospirillum Labrenz et al. 2003
             3 Genus Salinispirillum Shahinpei et al. 2014