procaryotes
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum Thermodesulfobacteria Garrity and Holt 2001 nom. inval. [monotypic] see Phylum Thermodesulfobacteria Garrity and Holt 2002 stat. inval.
       Class Thermodesulfobacteria Hatchikian et al. 2001 nom. inval. [monotypic] see Class Thermodesulfobacteria Hatchikian et al. 2002
         Order Thermodesulfobacterialesᵀ Hatchikian et al. 2001 nom. inval. [monotypic] see Order Thermodesulfobacteriales Hatchikian et al. 2002
           Family Thermodesulfobacteriaceae Hatchikian et al. 2001 nom. inval. [monotypic] see Family Thermodesulfobacteriaceae Hatchikian et al. 2002
             Genus Thermodesulfobacteriumᵀ Zeikus et al. 1995