Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Crawfordia radiata (Brightwell) Sims, Witkowski & César (2021)
Craspedodiscus ellipticus Gombos (1982)
Horodiscus rugosus Hajós (1975)
Pyrgupyxis gracilis (Tempère & Forti) Hendey (1969)
Gladius antiquus Forti & Schulz (1932)
Entogoniopsis foveatamorpha Witkowski (2020)