cellulosilyticum ruminicola cellulosilyticum ruminicola cellulosilyticum ruminicola is a gram-negative, obligate anaerobic, mesophilic, cellulolytic and non-motile bacterium from the genus of cellulosilyticum which has been isolated from the rumen of a yak. cellulosilyticum ruminicola scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: lachnospiraceae genus: cellulosilyticum species: c. ruminicola binomial name cellulosilyticum ruminicolacai and dong 2010 type strain cgmcc 1.5065, h1, jcm 14822