cuneatibacter cuneatibacter cuneatibacter is a rod-shaped bacterial genus from the family of lachnospiraceae with one known species (cuneatibacter caecimuris). cuneatibacter scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: lachnospiraceae genus: cuneatibacterlagkouvardos et al. 2016 type species cuneatibacter caecimuris species c. caecimuris