caloramator fervidus caloramator fervidus caloramator fervidus, previously known as clostridium fervidus, is a bacterium belonging to the bacillota. caloramator fervidus scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: clostridiaceae genus: caloramator species: c. fervidus binomial name caloramator fervidus(patel et al. 1987) collins et al. 1994 synonyms caloramator ferfidus clostridium fervidum clostridium fervidus