marinisporobacter marinisporobacter marinisporobacter is a gram-positive and endospore-forming bacterial genus from the family of clostridiaceae with one known species (marinisporobacter balticus). marinisporobacter scientific classification domain: bacteria phylum: bacillota class: clostridia order: clostridiales family: clostridiaceae genus: marinisporobactervandieken et al. 2017 species m. balticus