thermoanaerobacter siderophilus thermoanaerobacter siderophilus thermoanaerobacter siderophilus is a dissimilatory fe(iii)-reducing, anaerobic, thermophilic bacterium that was firstly isolated from the sediment of a hydrothermal vent found near the karymsky volcano, in the kamchatka peninsula, russia. it is spore-forming, with type strain sr4t (= dsm 12299t). thermoanaerobacter siderophilus scientific classification domain: bacteria phylum: bacillota class: clostridia order: thermoanaerobacterales family: thermoanaerobacteraceae genus: thermoanaerobacter species: t. siderophilus binomial name thermoanaerobacter siderophilusslobodkin et al. 1999