ruminiclostridium cellobioparum ruminiclostridium cellobioparum ruminiclostridium cellobioparum is a species of anaerobic cellulose-degrading gram-positive bacterium found in the bovine rumen belonging to the family oscillospiraceae. ruminiclostridium cellobioparum scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: oscillospiraceae genus: ruminiclostridium species: r. cellobioparum binomial name ruminiclostridium cellobioparum(hungate 1944) zhang et al. 2018 synonyms clostridium cellobioparum clostridium termitidis