Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Sheshukovia flos (Ehrenberg) Gleser (1984)
Trinacria regina Heiberg (1863)
Gladiopsis speciosa (Schulz) Gersonde & Harwood (1990)
Medlinia deciusii (Hanna) Nikolaev & Kociolek in Nikolaev et al. (2001)
Auliscus johnsonianus Greville (1863)
Actinoptychus decorans Schmidt (1890)