Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Stictodiscus kamischevensis Chenevière (1934)
Rocella vigilans Fenner (1984)
Triceratium lineatum Greville (1863)
Gladius antiquus Forti & Schulz (1932)
Fenneria kanayae (Fenner) Witkowski (2018)
Archaegoniothecium sutoi Witkowski, Harwood & Kulikovskiy (2012)