''Climacosphenia'' is a genus of marine pennate

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 ...

s in the order

Fragilariophyceae Fragilariophyceae is a group of pennate diatom The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls (or valves or frustules) of pennate diatoms, which a ...

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* * * * Diatom genera Fragilariophyceae Taxa named by Christian Gottfried Ehrenberg {{Diatom-stub