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 Aeromonadales Martin-Carnahan and Joseph 2005
           Family Succinivibrionaceae Hippe et al. 1999
             1 Genus Anaerobiospirillum Davis et al. 1976 (Approved Lists 1980)
             2 Genus Ruminobacter (ex Sijpesteijn 1949) Stackebrandt and Hippe 1987
             3 Genus Succinatimonas Morotomi et al. 2010
             4 Genus Succinimonas Bryant et al. 1958 (Approved Lists 1980)
             5 Genus Succinivibrio Bryant and Small 1956 (Approved Lists 1980)