| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Anaerobaculum mobile | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Anaerobaculum hydrogeniformans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Anaerobacter | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Anaerobacter polyendosporus T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Anaerobacillus alkalilacustre | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Anaeroarcus burkinabensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolicicoccus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolicicoccus subflavus T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis salitolerans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis rugosa | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis pithecelloba | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis orientalis subsp. orientalis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis orientalis subsp. lurida | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis keratiniphila subsp. nogabecina | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis japonicum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis halophila | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis fastidiosa | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis albidoflavus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolatopsis albidoflava | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolata | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolata saturnea | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolata hydrocarbonoxydans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolata autotrophica T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amycolata alni | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ampullariella | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ampullariella regularis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ampullariella lobata | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ampullariella digitata | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Ampullariella campanulata | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Amphiplicatus |