caldanaerobacter uzonensis caldanaerobacter uzonensis caldanaerobacter uzonensis is a thermophilic, anaerobic and heterotrophic bacterium from the genus of caldanaerobacter which has been isolated from a hot spring in uzon caldera in russia. caldanaerobacter uzonensis scientific classification domain: bacteria phylum: bacillota class: clostridia order: thermoanaerobacterales family: thermoanaerobacteraceae genus: caldanaerobacter species: c. uzonensis binomial name caldanaerobacter uzonensiskozina et al. 2010 type strain dsm 18923, k67, vkm b-2408