Procaryotic Genera
   Domain "Bacteria" Woese et al. 1990
     Phylum Thermodesulfobacteria Garrity and Holt 2001 [monotypic] see Phylum Deltaproteobacteria Kuever et al., 2006
       Class Thermodesulfobacteria Hatchikian et al. 2001 [monotypic] see Class Thermodesulfobacteria Hatchikian et al. 2002
         Order Thermodesulfobacterialesᵀ Hatchikian et al. 2001 [monotypic] see Order Thermodesulfobacteriales Hatchikian et al. 2002
           1 Family Thermodesulfobacteriaceae Hatchikian et al. 2001 [monotypic] see Family Thermodesulfobacteriaceae Hatchikian et al. 2002