| Name | Coscinodiscus subconcavus f. major Grunow |
| Authorship | Grunow |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Coscinodiscus subconcavus Grunow |
| Remarks | Created from Taxon Name Import: Coscinodiscus subconcavus f. major Grunow |
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