procaryotes
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum Deferribacteres Garrity and Holt 2002 stat. inval. see Phylum Deferribacterota Garrity and Holt 2021
       Class Deferribacteres Huber and Stetter 2001 nom. inval. see Class Deferribacteres Huber and Stetter 2002
         Order Deferribacterales Huber and Stetter 2001 nom. inval. see Order Deferribacterales Huber and Stetter 2002
           Family Deferribacteraceae Huber and Stetter 2001 nom. inval. see Family Deferribacteraceae Huber and Stetter 2002
             ?Genus Synergistes Allison et al. 1993