All species observed in Arctic Ocean
Family
Genus
- Clear
- Order: thalassionematales
- Genus: thalassionema
- Family: thalassionemataceae
- Class: bacillariophyceae
- (-) bacillariophyceae (3)
- (-) thalassionemataceae (3)
- (-) thalassionema (3)
- (-) thalassionematales (3)