| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Yersinia occitanica | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yersinia pekkanenii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia pestis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia philomiragia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yersinia proxima | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia pseudotuberculosis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia pseudotuberculosis subsp. pestis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yersinia pseudotuberculosis subsp. pseudotuberculosis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yersinia rochesterensi | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia rochesterensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Yersinia rohdei | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia ruckeri | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia similis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia thracica | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia vastinensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersinia wautersii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yersiniaceae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yimella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yimella lutea T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yimella radicis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yinghuangia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yinghuangia aomiensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yinghuangia catbensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yinghuangia seranimata | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yinghuangia soli | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Yokenella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yokenella regensburgei T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yonghaparkia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yonghaparkia alkaliphila T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Yonghella |