peptoniphilus duerdenii peptoniphilus duerdenii peptoniphilus duerdenii is a gram-positive and anaerobic bacterium from the genus of peptoniphilus which has been isolated from a human wound. peptoniphilus duerdenii scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: peptoniphilaceae genus: peptoniphilus species: p. duerdenii binomial name peptoniphilus duerdeniiulger-toprak et al. 2012 type strain atcc baa-1640, ccug 56065, mml-09-169, wal 1998l