Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Thermodesulfobacteria Garrity and Holt 2001 [monotypic] see Phylum Deltaproteobacteria 1 Class Thermodesulfobacteria Hatchikian et al. 2001 [monotypic] see Class Thermodesulfobacteria Hatchikian et al. 2002