| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Tabrizicola thermarum | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Tabrizicola soli | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Tabrizicola rongguiensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Tabrizicola flagellatus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Tabrizicola blastica | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Szabonella | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Szabonella alba | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Syntrophospora | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Syntrophospora bryantii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Syntrophobacterium | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Syntrophobacterium sulfatireducens | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Symbiotes | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Symbiotes lectularius | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Symbiotes lectularia | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Symbiopectobacterium | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Symbiopectobacterium purcellii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sutcliffiella rhizosphaerae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sutcliffiella deserti | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Suonthocola | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Suonthocola fibrivorans | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfurospirillum diekertiae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfurococcus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfurococcus yellowstonii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfurococcus yellowstonensis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfurococcus mirabilis | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfurimonas marina | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfuriferula plumbophilus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfolobus tokodaii | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfolobus solfataricus | Unknown | Valid (ICNP) | Excubia bot over 1 year ago | |
| Sulfolobus shibatae | Unknown | Valid (ICNP) | Excubia bot over 1 year ago |