Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
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Anuloplicata ornata (Grunow) Gleser in Gleser et al. (1992)
Truania archangelskiana Pantocsek (1886)
Actinoptychus wittianus Truan y Luard & Witt (1888)
Riedelia tenuicornis (Greville) Schrader & Fenner (1976)
Auliscus johnsonianus Greville (1863)
Cortinocornus rossicus (Pantocsek) Gleser (1984)