| methanobrevibacter sp. lrsd2 | no rank | archaea | environmental samples | species | 93724 |
| methanobrevibacter sp. lrsd3 | no rank | archaea | environmental samples | species | 93725 |
| methanobrevibacter sp. lrsm1 | no rank | archaea | environmental samples | species | 93726 |
| methanobrevibacter sp. rsi12 | no rank | archaea | environmental samples | species | 93730 |
| methanobrevibacter sp. rsi17 | no rank | archaea | environmental samples | species | 93731 |
| methanobrevibacter sp. rsi4 | no rank | archaea | environmental samples | species | 93729 |
| methanobrevibacter sp. rsw10 | no rank | archaea | environmental samples | species | 93728 |
| methanobrevibacter sp. rsw2 | no rank | archaea | environmental samples | species | 93727 |
| methanogenic symbiont rs104 | no rank | archaea | bacteria | species | 89619 |
| methanogenic symbiont rs105 | no rank | archaea | bacteria | species | 89622 |