marinococcus marinococcus marinococcus is a gram-positive, strictly aerobic, chemolithoautotrophic and non-spore-forming genus of bacteria from the family of bacillaceae. marinococcus scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: marinococcushao et al. 1985 type species marinococcus halophilus species m. halophilus m. halotolerans m. luteus m. salis m. tarijensis