GenusHungateiclostridium
| Taxon: | Rank: |
| Hungateiclostridium aldrichii | species |
| Hungateiclostridium alkalicellulosi | species |
| Hungateiclostridium clariflavum | species |
| Hungateiclostridium mesophilum | species |
| Hungateiclostridium straminisolvens | species |
| Hungateiclostridium thermocellum | species |