| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Oligoflexus tunisiensis T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oligoflexus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oligoflexaceae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oligoflexales | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oligella urethralis T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oligella ureolytica | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oligella | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleispira lenta | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleispira antarctica T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleispira | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleisolibacter albus T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleisolibacter | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiphilus messinensis T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiphilus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiphilaceae | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiliquidispirillum nitrogeniifigens T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiliquidispirillum | ||||
| Oleiharenicola lentus | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiharenicola alkalitolerans T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiharenicola | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleidesulfovibrio vietnamensis | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleidesulfovibrio alaskensis T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleidesulfovibrio | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleibacter marinus T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleibacter | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiagrimonas soli T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiagrimonas citrea | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Oleiagrimonas | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Okibacterium fritillariae T | Unknown | Valid (ICNP) | Excubia bot about 5 years ago | |
| Okibacterium endophyticum | Unknown | Valid (ICNP) | Excubia bot about 5 years ago |