Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Pseudotriceratium chenevieri (Meister) Gleser (1974)
Pseudopodosira bella Posnova & Gleser in Gleser & Posnova (1964)
Entogoniopsis venosa (Brightwell) Witkowski, Sims, Strelnikova & Williams (2015)
Pyxilla oligocaenica Jousé (1955)
Keratophora nitida Pantocsek (1889)
Rocella vigilans Fenner (1984)