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 Oceanospirillaceae Garrity et al. 2005
             01 Genus Amphritea Gärtner et al. 2008
             02 Genus Balneatrix Dauga et al. 1993
             03 Genus Bermanella Pinhassi et al. 2009
             04 Genus Corallomonas Chen et al. 2013
             05 Genus Litoribrevibacter Li et al. 2015
             06 Genus Marinomonas van Landschoot and De Ley 1984
             07 Genus Marinospirillum Satomi et al. 1998
             08 Genus Neptuniibacter Arahal et al. 2007
             09 Genus Neptunomonas Hedlund et al. 1999
             10 Genus Nitrincola Dimitriu et al. 2005
             11 Genus Oceaniserpentilla Schlösser et al. 2008
             12 Genus Oceanobacter Satomi et al. 2002
             13 Genus Oceanospirillum Hylemon et al. 1973 (Approved Lists 1980)
             14 Genus Oleibacter Teramoto et al. 2011
             15 Genus Oleispira Yakimov et al. 2003
             16 Genus Pseudospirillum Satomi et al. 2002
             17 Genus Reinekea Romanenko et al. 2004
             18 Genus Thalassolituus Yakimov et al. 2004