cohnella cohnella cohnella is a genus of bacteria in the family paenibacillaceae. its species are gram-positive, rod-shaped and endospore-forming. cohnella scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: paenibacillaceae genus: cohnellakämpfer et al., 2006 species cohnella hongkongensis cohnella thermotolerans