| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Alloscardovia omnicolens | 1 | 10 | MGYG |
| Amedibacillus dolichus | 2 | 5 | HMP/MGYG |
| Aminobacterium colombiense | 1 | 1 | HMP |
| Ammonifex degensii | 1 | 1 | HMP |
| Amycolatopsis mediterranei | 1 | 7 | HMP |
| Anaerobiospirillum succiniciproducens | 1 | 1 | MGYG |
| Anaerobutyricum hallii | 3 | 16 | HMP/MGYG |
| Anaerococcus hydrogenalis | 2 | 4 | HMP/MGYG |
| Anaerococcus lactolyticus | 2 | 2 | HMP/MGYG |
| Anaerococcus obesiensis | 1 | 2 | MGYG |