| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Abditibacteriaceae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abditibacteriales | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abditibacteriia | ||||
| Abditibacteriota | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abditibacterium | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abditibacterium utsteinense T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abiotrophia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abiotrophia adiacens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Abiotrophia balaenopterae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Abiotrophia defectiva T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abiotrophia elegans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Absicoccus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Absicoccus intestinalis | ||||
| Absicoccus porci T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Absiella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Absiella argi T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abyssalbus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Abyssalbus ytuae T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Abyssibacter | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abyssibacter profundi T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abyssibius | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Abyssibius alkaniclasticus T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Abyssicoccaceae | ||||
| Abyssicoccus | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abyssicoccus albus T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abyssisolibacter | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Abyssisolibacter fermentans T | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Abyssivirga | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Abyssivirga alkaniphila T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Acanthopleuribacter | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |