Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Rutilaria radiata Grove & Sturt (1886)
Trinacria excavata Heiberg (1863)
Peponia barbadensis Greville (1863)
Liradiscus ovalis Greville (1865)
Mastogloia sagitta-cupidinis Brun (1896)
Gladius antiquus Forti & Schulz (1932)