Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Trinacria regina Heiberg (1863)
Triceratium lineatum Greville (1863)
Kreagra forfex Gersonde & Harwood (1990)
Psammodiscus praenitidus (Fenner in Schrader & Fenner) Witkowski (2022)
Raphidodiscus marylandicus Christian (1887)
Stictodiscus novaezealandiae Grunow (1888)