macellibacteroides macellibacteroides macellibacteroides is a genus from the family of porphyromonadaceae, with one known species (macellibacteroides fermentans). macellibacteroides scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: porphyromonadaceae genus: macellibacteroidesjabari et al. 2012 type species macellibacteroides fermentans species m. fermentans