| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Anaerobacillus alkalilacustre | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Anaeroarcus burkinabensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolicicoccus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolicicoccus subflavus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis salitolerans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis rugosa | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis pithecelloba | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis orientalis subsp. orientalis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis orientalis subsp. lurida | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis keratiniphila subsp. nogabecina | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis japonicum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis halophila | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis fastidiosa | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis albidoflavus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolatopsis albidoflava | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolata | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolata saturnea | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolata hydrocarbonoxydans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolata autotrophica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amycolata alni | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Ampullariella | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Ampullariella regularis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Ampullariella lobata | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Ampullariella digitata | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Ampullariella campanulata | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amphiplicatus | ||||
| Amphibacillus fermentum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amorphosporangium | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amorphosporangium globisporum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Amorphosporangium auranticolor | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |