| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Thiothrix caldifontis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiothrix | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiospirochaeta perfilievii T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiospirochaeta | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiosocius teredinicola T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiosocius | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodovibrio winogradskyi T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodovibrio | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodospira sibirica T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodospira | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodococcus modestalkaliphilus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodococcus minor T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodococcus mannitoliphagus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodococcus kakinadensis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodococcus fuscus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodococcus alkaliphilus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiorhodococcus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thioreductor micantisoli T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thioreductor | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiopseudomonas denitrificans T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiopseudomonas | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thioprofundum lithotrophicum T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thioprofundum hispidum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thioprofundum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiophaeococcus mangrovi T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiophaeococcus fuscus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiophaeococcus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiomonas thermosulfata | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiomonas perometabolis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Thiomonas islandica | Unknown | Valid (ICNP) | Excubia bot about 5 years ago |