dolosigranulum dolosigranulum dolosigranulum is a gram-positive, non-spore-forming, facultatively anaerobic and non-motile bacterial genus from the family of carnobacteriaceae, with one known species (dolosigranulum pigrum). dolosigranulum scientific classification domain: bacteria phylum: bacillota class: bacilli order: lactobacillales family: carnobacteriaceae genus: dolosigranulumaguirre et al. 1994 type species dolosigranulum pigrum species d. pigrum