| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Bifidobacterium aquikefiricola | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aurantiacibacter hainanensis | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aurantiacibacter gilvus | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aurantiacibacter flavus | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Arthrobacter horti | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquipseudomonas | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquipseudomonas ullengensis | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquipseudomonas guryensis | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquipseudomonas campi | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquipseudomonas alcaligenes T | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquilutibacter | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquilutibacter rugosus T | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquibaculum | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquibaculum arenosum T | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Aquabacterium humicola | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides voinovskiensis | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides voinovskiense | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides tepidamans | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides rupiensis | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides rupiense | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides geothermalis | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides geothermale | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides contaminans | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides amylolyticus | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacteroides amylolyticum T | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Anoxybacillus andreesenii | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Amycolatopsis solani | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Amycolatopsis nalaikhensis | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago | |
| Amycolatopsis melonis | Unknown | Valid (ICNP) | Excubia bot almost 2 years ago |