Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Eupodiscus radiatus Bailey (1851)
Pyxilla oligocaenica Jousé (1955)
Trinacria senta (Witt) Sims & Ross (1988)
Arachnoidiscus clarus Brown (1933)
Solium exsculptum Heiberg (1863)
Craspedodiscus ellipticus Gombos (1982)