| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Tolumonas lignolytica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Tissierella simiarum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Tindallia magadii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thomasclavelia | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thomasclavelia spiroformis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thomasclavelia saccharogumia | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thomasclavelia ramosa | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thomasclavelia cocleata | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiothrix litoralis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiosulfativibrio | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiosulfativibrio zosterae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiosulfatimonas | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiosulfatimonas sediminis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiosulfatihalobacter | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiosulfatihalobacter marinus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiospirillum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiospirillum jenense | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiospira | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiospira winogradskyi | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiosphaera | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiosphaera pantotropha | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiorhodococcus minus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiorhodococcus bheemlicus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiopseudomonas caeni | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thiopseudomonas alkaliphila | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thioprofundum lithotrophica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thioploca | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thioploca schmidlei | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thioploca ingrica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Thioploca chileae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |