| antarctica | | uncultured thermococcus sp. | species | 2 | 0 |
| china | | uncultured thermococcus sp. | species | 156 | 0 |
| china | henan | uncultured thermococcus sp. | species | 1 | 0 |
| egypt | | uncultured thermococcus sp. | species | 1 | 0 |
| india | | uncultured thermococcus sp. | species | 34 | 0 |
| japan | okinawa prefecture | uncultured thermococcus sp. | species | 1 | 0 |
| nigeria | | uncultured thermococcus sp. | species | 32 | 0 |
| united states | | uncultured thermococcus sp. | species | 2 | 0 |
| united states | alaska | uncultured thermococcus sp. | species | 1 | 0 |