staphylococcus carnosus staphylococcus carnosus staphylococcus carnosus is a gram-positive, coagulase-negative member of the bacterial genus staphylococcus consisting of single and paired cocci. its genome has the highest gc content - 36.4% - of any sequenced staphylococcal species. staphylococcus carnosus scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: staphylococcaceae genus: staphylococcus species: s. carnosus binomial name staphylococcus carnosusschliefer and fischer 1982 staphylococcus carnosus was originally isolated from dry sausage and is involved in the production of meat products.