Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Azpeitia tabularis (Grunow) Fryxell & Sims in Fryxell et al. (1986)
Pseudopodosira bella Posnova & Gleser in Gleser & Posnova (1964)
Sheshukovia mereskovskii (Pantocsek) Gleser (1984)
Medlinia abyssora (Grunow) Sims (1998)
Rylandsia biradiata Greville (1861)
Brightwellia coronata (Brightwell) Ralfs in Pritchard (1861)