All species observed in Arctic Ocean
Family
Genus
- Clear
- Order: thalassionematales
- Genus: thalassiothrix
- Family: thalassionemataceae
- Class: bacillariophyceae
- (-) bacillariophyceae (5)
- (-) thalassionemataceae (5)
- (-) thalassiothrix (5)
- (-) thalassionematales (5)