FamilyPeptoniphilaceae
| Taxon: | Rank: |
| Anaerococcus | genus |
| Anaerosphaera | genus |
| Citroniella | genus |
| Ezakiella | genus |
| Finegoldia | genus |
| Gallicola | genus |
| Helcococcus | genus |
| Micromonas | genus |
| Murdochiella | genus |
| Parvimonas | genus |
| Peptoniphilus | genus |
| Taxon: | Rank: |
| Anaerococcus | genus |
| Anaerosphaera | genus |
| Citroniella | genus |
| Ezakiella | genus |
| Finegoldia | genus |
| Gallicola | genus |
| Helcococcus | genus |
| Micromonas | genus |
| Murdochiella | genus |
| Parvimonas | genus |
| Peptoniphilus | genus |