caldanaerobacter caldanaerobacter caldanaerobacter is a gram-positive or negative and strictly anaerobic genus of bacteria from the family of thermoanaerobacteraceae. caldanaerobacter scientific classification domain: bacteria phylum: bacillota class: clostridia order: thermoanaerobacterales family: thermoanaerobacteraceae genus: caldanaerobacterfardeau et al. 2004 type species caldanaerobacter subterraneus(fardeau et al. 2000) fardeau et al. 2004 species "c. hydrothermalis" "c. proteolyticus" c. subterraneus c. uzonensis synonyms carboxydibrachium corrig. sokolova et al. 2001 carboxydobrachium (sic) phylogeny the currently accepted taxonomy is based on the list of prokaryotic names with standing in nomenclature (lpsn) and national center for biotechnology information (ncbi) 16s rrna based ltp_01_2022 c. subterraneus subterraneus (fardeau et al. 2000) fardeau et al. 2004 c. subterraneus yonseiensis (kim et al. 2001) fardeau et al. 2004 c. subterraneus tengcongensis (xue et al. 2001) fardeau et al. 2004 c. subterraneus pacificus (sokolova et al. 2001) fardeau et al. 2004 c. uzonensis kozina et al. 2010