tepidibacillus fermentans tepidibacillus fermentans tepidibacillus fermentans is a gram-positive, moderately thermophilic, spore-forming and motile bacterium from the genus of tepidibacillus which has been isolated from an underground gas storage in severo-stavropolskoye in russia. tepidibacillus fermentans scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: tepidibacillus species: t. fermentans binomial name tepidibacillus fermentansslobodkina et al. 2014 type strain dsm 23802, stgh, vkm b-2671