Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Medlinia deciusii (Hanna) Nikolaev & Kociolek in Nikolaev et al. (2001)
Actinoptychus splendens (Shadbolt) Ralfs in Pritchard (1861)
Azpeitia tuberculata (Greville) Sims in Fryxell et al. (1986)
Triceratium blanditum Greville (1861)
Pyxilla oligocaenica Jousé (1955)
Grunowiella gemmata (Grunow) Van Heurck (1896)