calidifontibacillus erzurumensis calidifontibacillus erzurumensis calidifontibacillus azotoformans is a gram-positive, aerobic endospore-forming, rod-shaped and motile bacterium from the genus of calidifontibacillus which has been isolated from water of a hot spring. alteribacillus alkaliphilus scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: calidifontibacillus species: c. azotoformans binomial name calidifontibacillus azotoformansadiguzel et al. 2020 type strain p2