| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Azobacteroides | ||||
| Hadarchaeota | ||||
| Hydrothermarchaeia | ||||
| Hydrothermarchaeales | ||||
| Zongyanglinia marinus | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Zobellia alginiliquefaciens | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Youhaiella shaoguanensis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Yinghuangia soli | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Xylanimonas protaetiae | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Xenorhabdus bovienii subsp. bovienii | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Xenorhabdus bovienii subsp. africana | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Winslowiella | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Winslowiella toletana T | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Winslowiella iniecta | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Winslowiella arboricola | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Weizmannia acidilactici | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Weissella fangxianensis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Vibrio qingdaonensis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Vibrio paucivorans | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Vibrio intestinalis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Vibrio eleionomae | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Vallitalea longa | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Vagococcus luciliae | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Tsuneonella litorea | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Trujillonella | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Trujillonella endophytica T | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Tomitella cavernae | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Thiothrix winogradskyi | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Thiothrix subterranea | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Thiomicrorhabdus immobilis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago |