Procaryotic Genera
   Domain "Bacteria" Woese et al. 1990
     Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
       Class "Clostridia" Garrity et al. 2001 nom. ined. see Class Clostridia Rainey 2010
         Order Clostridiales Prévot 1953 (Approved Lists 1980)
           Family Syntrophomonadaceae Zhao et al. 1993
             01 Genus Syntrophomonas McInerney et al. 1982
             02 Genus Acetogenium Leigh and Wolfe 1983 see Genus Thermoanaerobacterium Lee et al. 1993
             03 Genus Aminobacterium Baena et al. 1999
             04 Genus Aminomonas Baena et al. 1999
             05 Genus Anaerobaculum Rees et al. 1997
             06 Genus Anaerobranca Engle et al. 1995
             07 Genus Caldicellulosiruptor Rainey et al. 1995
             08 Genus Dethiosulfovibrio Magot et al. 1997
             09 Genus Pelospora Matthies et al. 2000
             10 Genus Syntrophospora Zhao et al. 1990 see Genus Syntrophomonas McInerney et al. 1982
             11 Genus Syntrophothermus Sekiguchi et al. 2000
             12 Genus Thermaerobacter Takai et al. 1999
             13 Genus Thermanaerovibrio Baena et al. 1999
             14 Genus Thermohydrogenium Zacharova et al. 1996
             15 Genus Thermosyntropha Svetlitshnyi et al. 1996