brockia brockia brockia is a genus of thermophilic bacteria from the family of thermoanaerobacteraceae, with one known species (brockia lithotrophica), an obligate anaerobe, spore-forming, rod-shaped microorganism. brockia scientific classification domain: bacteria phylum: bacillota class: clostridia order: thermoanaerobacterales family: thermoanaerobacteraceae genus: brockiaperevalova et al. 2013 type species brockia lithotrophica species brockia lithotrophica