| antarctica | | uncultured diatom | species | 27 | 0 |
| antarctica | | uncultured marine diatom | species | 1 | 0 |
| argentina | chubut province | uncultured diatom | species | 1 | 0 |
| australia | new south wales | uncultured diatom | species | 24 | 0 |
| australia | queensland | uncultured diatom | species | 3 | 0 |
| brunei | | uncultured diatom | species | 196 | 0 |
| brunei | brunei and muara district | uncultured diatom | species | 71 | 0 |
| canada | | uncultured diatom | species | 1 | 0 |
| chile | atacama region | uncultured diatom | species | 1 | 0 |
| china | | uncultured diatom | species | 20 | 0 |
| china | guangdong | uncultured diatom | species | 1 | 0 |
| china | hainan | uncultured diatom | species | 1 | 0 |
| costa rica | | uncultured diatom | species | 6 | 0 |
| finland | | uncultured diatom | species | 9 | 0 |
| france | | uncultured diatom | species | 1 | 0 |
| france | | uncultured eunotia-like diatom | species | 1 | 0 |
| france | | uncultured navicula-like diatom | species | 1 | 0 |
| france | | uncultured nitzschia-like diatom | species | 1 | 0 |
| france | provence-alpes-cote d'azur region | uncultured diatom | species | 2 | 0 |
| greenland | | uncultured diatom | species | 1 | 0 |
| india | | uncultured diatom | species | 5 | 0 |
| italy | tuscany region | uncultured diatom | species | 1 | 0 |
| japan | | uncultured diatom | species | 107 | 0 |
| japan | ehime prefecture | uncultured diatom | species | 2 | 0 |
| japan | hokkaido prefecture | uncultured diatom | species | 38 | 0 |
| japan | kagoshima prefecture | uncultured diatom | species | 3 | 0 |
| japan | miyagi ken prefecture | uncultured diatom | species | 36 | 0 |
| mexico | | uncultured diatom | species | 10 | 0 |
| mexico | coahuila zaragoza | uncultured diatom | species | 5 | 0 |
| mexico | mexico | uncultured diatom | species | 1 | 0 |
| mexico | sinaloa | uncultured diatom | species | 2 | 0 |
| mexico | tamaulipas | uncultured diatom | species | 4 | 0 |
| norway | | uncultured diatom | species | 1 | 0 |
| norway | | uncultured marine diatom | species | 1 | 0 |
| palau | | uncultured diatom | species | 9 | 0 |
| russia | | uncultured diatom | species | 82 | 0 |
| russia | irkutsk oblast | uncultured diatom | species | 1 | 0 |
| russia | volgograd oblast | uncultured diatom | species | 2 | 0 |
| south korea | | uncultured diatom | species | 3 | 0 |
| spain | | uncultured diatom | species | 1 | 0 |
| spain | castile and leon | uncultured diatom | species | 2 | 0 |
| switzerland | | uncultured diatom | species | 2 | 0 |
| switzerland | | uncultured eunotia-like diatom | species | 1 | 0 |
| switzerland | geneva region | uncultured diatom | species | 3 | 0 |
| taiwan | | uncultured diatom | species | 7 | 0 |
| trinidad and tobago | | uncultured diatom | species | 2 | 0 |
| united states | alaska | uncultured bacillariophyte clone aws98-11b | species | 1 | 0 |
| united states | alaska | uncultured bacillariophyte clone aws98-11c | species | 1 | 0 |
| united states | alaska | uncultured bacillariophyte clone aws98-19b | species | 1 | 0 |
| united states | alaska | uncultured bacillariophyte clone aws98-2c | species | 1 | 0 |
| united states | california | uncultured diatom | species | 1 | 0 |
| united states | colorado | uncultured diatom | species | 7 | 0 |
| united states | florida | uncultured diatom | species | 1 | 0 |
| united states | massachusetts | uncultured diatom | species | 2 | 0 |
| united states | oklahoma | uncultured diatom | species | 14 | 0 |
| united states | texas | uncultured diatom | species | 1 | 0 |