Procaryotic Genera
Count: [*] 25p;39c;84o;215f;1008g [28 May 2016]
   Domain "Bacteria" Woese et al. 1990
  Count: [*] 23p;31c;72o;194f;935g [28 May 2016]
     Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
    Count: [*] 3c;9o;32f;184g [27 May 2016]
       Class "Clostridia" Garrity et al. 2001 nom. ined. see Class Clostridia Rainey 2010
      Count: [*] 3o;11f;106g [27 May 2016]
         Order Clostridiales Prévot 1953 (Approved Lists 1980)
        Count: [*] 8f;88g [27 May 2016]
           Family Syntrophomonadaceae Zhao et al. 1993
          Count: [*] 15g [27 May 2016]
             Genus Syntrophomonas McInerney et al. 1982
            Count: -