Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Craspedodiscus elegans Ehrenberg (1844)
Pyrgupyxis gracilis (Tempère & Forti) Hendey (1969)
Dextradonator eximius (Grunow) Ross & Sims (1980)
Entogonia davyana (Greville) Greville (1863)
Goniothecium decoratum Brun (1891)
Eupodiscus radiatus Bailey (1851)