Reclassification of Anaerobaculum mobile, Anaerobaculum thermoterrenum, Anaerobaculum hydrogeniformans as Acetomicrobium mobile comb. nov., Acetomicrobium thermoterrenum comb. nov. and Acetomicrobium hydrogeniformans comb. nov., respectively, and emendation of the genus Acetomicrobium.

Taking into account their 16S rRNA gene sequences, it appears that and the three species of the genus described so far belong to the same phylogenetic clade with high levels (>95 %) of similarity. In this respect, these three species should be reclassified within the genus , which has priority over the genus , which was validated since the genus . The DNA G+C content of is 47.1 mol%, which is of the same order as that of the three species. All these bacteria have in common iso-C as their main fatty acid. Based on further phylogenetic, genetic and chemotaxonomic studies, we propose that ( = DSM 13181 = JCM 12221), ( = DSM 13490 = ACM 5076) and ( = DSM 22491 = ATCC BAA-1850) be reclassified as comb. nov., comb. nov. and comb. nov., respectively. The four bacterial species belong to the phylum .