| Name | Class | Order | Family | Genus |
|---|---|---|---|---|
| Methanosarcina acetivorans | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina baltica | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina barkeri | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina horonobensis | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina lacustris | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina mazei | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina semesiae | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina siciliae | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina soligelidi | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina spelaei | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina thermophila | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina vacuolata | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |
| Methanosarcina flavescens | Methanomicrobia | Methanosarcinales | Methanosarcinaceae | Methanosarcina |