| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Tyrphobacter | ||||
| Tyrphobacter aquilonaris Ts | ||||
| Tyrstrupiaceae | ||||
| Tyrstrupium | ||||
| Tyrstrupium boreale Ts | ||||
| “Tyzzerella” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Tyzzerella colina” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| Uabimicrobiaceae | ||||
| Uabimicrobiales | ||||
| Uabimicrobiia | ||||
| Uabimicrobium | ||||
| Uabimicrobium amorphum Ts | ||||
| Ubbysoma | ||||
| Ubbysoma aquaticum Ts | ||||
| Ugevita | ||||
| Ugevita sediminis | ||||
| Ugevita terrea Ts | ||||
| Ulfborgiaba | ||||
| Ulfborgiaba vicina Ts | ||||
| Ulfborgiabaceae | ||||
| Uliginosibacterium | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Uliginosibacterium aquaticum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Uliginosibacterium flavum | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Uliginosibacterium gangwonense T | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Uliginosibacterium paludis | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| “Uliginosibacterium sangjuense” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| Uliginosibacterium sediminicola | Unknown | Valid (ICNP) | Excubia bot almost 5 years ago | |
| Uliginosibacterium silvisoli | Unknown | Valid (ICNP) | Excubia bot about 1 year ago | |
| “Ultramicrobacter” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Ultramicrobacter hongkongensis” | Unknown | Automated discovery | Excubia bot over 2 years ago |