| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| “Yaniella helvetica” | Unknown | Automated discovery | Excubia bot about 1 year ago | |
| “Yanshouia” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yanshouia hominis” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yeguia” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yeguia hominis” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yeguiaceae” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yeosuana yeosuensis” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yersinia pestis subsp. microtus” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yersinia pestis subsp. pestis” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yimella indica” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yinghuangia elevatio” | Unknown | Automated discovery | Excubia bot about 1 year ago | |
| “Yonghaparkia flavibacter” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Yuhushiella arida” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zafaria ginkgonis” | Unknown | Automated discovery | Excubia bot about 1 year ago | |
| “Zambryskibacteraceae” | ||||
| “Zambryskiibacteriales” | ||||
| “Zavarzinia cavernae” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zehria” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zehria floridana” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zestofontihabitans tengchongensis” | Unknown | Automated discovery | Excubia bot about 1 year ago | |
| “Zetaproteobacteria” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zhengella sedimenti” | Unknown | Automated discovery | Excubia bot 9 months ago | |
| “Zhenhengia massiliensis” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zhenhengia stercoravium” | Unknown | Automated discovery | Excubia bot about 2 years ago | |
| “Zhenpiania” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zhenpiania hominis” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zhenpiania massiliensis” | Unknown | Automated discovery | Excubia bot over 2 years ago | |
| “Zhongshania aquatica” | Unknown | Automated discovery | Excubia bot 9 months ago | |
| “Zhuqueibacter tengchongensis” | Unknown | Automated discovery | Excubia bot about 1 year ago | |
| “Zhurongbacter” | Unknown | Automated discovery | Excubia bot 3 months ago |