| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Pacificibacter | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxobacter pfennigii T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxobacter | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalophagus oxalicus T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalophagus | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalobacter vibrioformis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalobacter formigenes T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalobacter | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalicibacterium solurbis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalicibacterium horti | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalicibacterium flavum T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalicibacterium faecigallinarum | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oxalicibacterium | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Owenweeksia hongkongensis T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Owenweeksia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Ottowia thiooxydans T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Ottowia pentelensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Ottowia oryzae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Ottowia konkukae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Ottowia flava | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Ottowia beijingensis | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Ottowia | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Otariodibacter oris T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Otariodibacter | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oscillochloris trichoides | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oscillochloris | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oscillochloridaceae | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oscillibacter valericigenes T | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oscillibacter ruminantium | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago | |
| Oscillibacter | Unknown | Valid (ICNP) | Excubia bot almost 3 years ago |