peptacetobacter peptacetobacter peptacetobacter is a genus of bacteria in the family peptostreptococcaceae. peptacetobacter scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: peptostreptococcaceae genus: peptacetobacterchen et al. 2020 type species peptacetobacter hominis species peptacetobacter hiranonis peptacetobacter hominis