Bacillariophyceae - Rhaphoneidales - Rhaphoneidaceae

"Description: Lanceolate valves with convex sides and pointed to rounded apices. Straight sternum; striae uniseriate, composed of subquadrate to rounded areolae occluded by an elaborate cribrum. Each apex has a rimoportula on the valve face, oriented perpendicular to the sternum, and a small apical pore eld. The mantle bears three rows of areolae." (Figus and Witkowski, 2024)

Full reference: C. Figus and J. Witkowski. 2024. New taxa of the Rhaphoneidaceae Forti (Bacillariophyta) from the middle Eocene. Diatom Research 1-11

Parent taxon: Rhaphoneidaceae according to C. Figus and J. Witkowski 2024

Sister taxa: Delphineis, Diplomenora, Rhaphoneis, Rosaforma, Sceptroneis

Subtaxa: Rhomboneis shtapovii

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Ecology: "photoautotroph"

Distribution: found only at OPD Hole 1050A (Eocene of North Atlantic)

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Specimen images are retrieved through the ePANDDA API.