thermoclostridium thermoclostridium thermoclostridium is a genus of anaerobic bacteria. many species in thermoclostridium were historically ordered in the genus clostridium. thermoclostridium scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: oscillospiraceae genus: thermoclostridiumzhang et al. 2018 species t. caenicola t. stercorarium