gemmiger formicilis gemmiger formicilis gemmiger formicilis is a bacterium from the genus gemmiger. it was initially assigned to the "pseudomonadota", however 16s rrna sequencing has led to its reclassification in the bacillota. gemmiger formicilis scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: oscillospiraceae genus: gemmiger species: g. formicilis binomial name gemmiger formicilisgossling and moore 1975 type species gemmiger formicilis type strain atcc 27749x2-56