Coscinodiscaceae is a

diatom A diatom (Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising sev ...

family in the order Coscinodiscales.

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Diatom families Coscinodiscophyceae Taxa named by Friedrich Traugott Kützing {{Diatom-stub