At any stage, you can move up or down the Taxonomic hierachy of Antarctic/subantarctic species by clicking on any name. Lower level taxon counts are shown in [].
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| Kingdom | Chromista | |
| Phylum | Ochrophyta | |
| Class | Bacillariophyceae | |
| Order | Centrales | |
| Family | Thalassiosiraceae | |
| Genus | Thalassiosira |
List of Individual Species - see Taxon profile using the name of the taxa.
| Thalassiosira antarctica | Comber 1896 | ||
| Thalassiosira decipiens | (Grunow) J°rgensen 1905 | ||
| Thalassiosira excentrica | (Ehrenberg) Cleve 1904 | ||
| Thalassiosira frenguelli | Kozlova 1967 | ||
| Thalassiosira gracilis | (Karsten) Hustedt | ||
| Thalassiosira gracilis | Karsten 1905 | Synonym | |
| Thalassiosira oculus-iridis | |||
| Thalassiosira oliverana | (O'Meara) Makaerova et Nikolaev | ||
| Thalassiosira torokina | Brady 1977 |