Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Triceratium trisulcum Schmidt (1886)
Entogoniopsis polycistinora (Pantocsek ex Tempère) Strelnikova, Sims, Witkowski & Williams (2015)
Arachnoidiscus clarus Brown (1933)
Pyrgupyxis gracilis (Tempère & Forti) Hendey (1969)
Costopyxis antiqua Gleser (1984)
Triceratium unguiculatum Greville (1864)