thermodesulfobacteria thermodesulfobacteria the thermodesulfobacteriaceae are a family of sulfate-reducing bacteria. thermodesulfobacteria scientific classification domain: bacteria phylum: thermodesulfobacteriota class: thermodesulfobacteriahatchikian, ollivier & garcia 2002 order: thermodesulfobacterialeshatchikian, ollivier & garcia 2002 genera "geothermobacterium" thermosulfuriphilus thermodesulfatatoraceae thermodesulfobacteriaceae phylogeny