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 Clostridiaceae Pribram 1933 (Approved Lists 1980)
             01 Genus Clostridium Prazmowski 1880 (Approved Lists 1980)
             02 Genus Acetivibrio Patel et al. 1980
             03 Genus Acidaminobacter Stams and Hansen 1985
             04 Genus Anaerobacter Duda et al. 1996
             05 Genus Caloramator Collins et al. 1994
             06 Genus Coprobacillus Kageyama and Benno 2000
             07 Genus Natronincola corrig. Zhilina et al. 1999
             08 Genus Oxobacter Collins et al. 1994
             09 Genus Sarcina Goodsir 1842 (Approved Lists 1980)
             10 Genus Sporobacter Grech-Mora et al. 1996
             11 Genus Thermobrachium Engle et al. 1996
             12 Genus Thermohalobacter Cayol et al. 2000
             13 Genus Tindallia Kevbrin et al. 1999