Doodle showing the diatom Plagiogramma Fossil Diatom Atlas
Browsing alphabetically by genus and species
Pyxilla oligocaenica Jousé (1955)
Raphidodiscus marylandicus Christian (1887)
Raphidodiscus marylandicus Christian (1887)
Rattrayella antiqua Hajós & Stradner (1975)
Rattrayella obovata Sims (2006)
Rhaphoneis atlantica Andrews (1989)