Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Auliscus propinquus Grove & Sturt (1887)
Triceratium secedens Schmidt (1888)
Triceratium lineatum Greville (1863)
Craspedodiscus ellipticus Gombos (1982)
Nikolaevia symbolica Harwood & Witkowski (2010)
Stictodiscus novaezealandiae Grunow (1888)