Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Strangulonema barbadense Greville (1865)
Aulacodiscus septus Schmidt (1876)
Rosaforma paillesiae Figus & Witkowski (2024)
Arachnoidiscus ehrenbergii Bailey ex Ehrenberg (1849)
Actinoptychus wittianus Truan y Luard & Witt (1888)
Crawfordia radiata (Brightwell) Sims, Witkowski & César (2021)