pelospora pelospora pelospora is a gram-negative strictly anaerobic and spore-forming bacterial genus from the family of syntrophomonadaceae with one known species (pelospora glutarica). pelospora scientific classification domain: bacteria phylum: bacillota class: clostridia order: clostridiales family: syntrophomonadaceae genus: pelosporamatthies et al. 2000 type species pelospora glutarica species p. glutarica