Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Pyrgupyxis gracilis (Tempère & Forti) Hendey (1969)
Triceratium kinkerii Schmidt (1886)
Entogoniopsis saratoviana (Pantocsek) Witkowski, Sims, Strelnikova & Williams (2015)
Mastogloia sagitta-cupidinis Brun (1896)
Briggera capitata (Greville) Ross & Sims (1985)
Triceratium secedens Schmidt (1888)