| Kingdom | Phylum | Class | Order | Family | Genus |
|---|---|---|---|---|---|
| Chromista | Ochrophyta | Bacillariophyceae | Bacillariales | Bacillariaceae | Fragilariopsis F.Hustedt, 1913 |
| Rank | Scientific name | Taxonomic status |
|---|---|---|
| variety | Fragilaria sublinearis var. ambigua Peragallo, 1921 | accepted |
| variety | Fragilaria sublinearis var. sublinearis | accepted |
| form | Fragilaria antarctica f. lata van Heurck, 1909 | accepted |
| form | Fragilaria obliquecostata f. maxima van Heurck, 1909 | accepted |
| form | Fragilaria obliquecostata f. obliquecostata | accepted |
| form | Fragilaria sublinearis f. longa Van Heurck, 1909 | accepted |
| form | Fragilaria sublinearis f. sublinearis | accepted |
Fragilariopsis obliquecostata (Van Heurck) Heiden & Kolbe. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2019-11-17.