[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   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 Peptococcaceae Rogosa 1971 (Approved Lists 1980)
             Genus Desulfitobacterium Utkin et al. 1994
               1 Desulfitobacterium dehalogenans Utkin et al. 1994
               2 Desulfitobacterium chlororespirans Sanford et al. 2001
               3 Desulfitobacterium hafniense Christiansen and Ahring 1996
               4 Desulfitobacterium metallireducens Finneran et al. 2002