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Author - title
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| details | Late Hirnantian | Algeria | Paris,F. et al. The effects of the final stages of the Late Ordovician glaciation on marine palynomorphs (chitinozoans, acritarchs, leiospheres) in Well NI-2 (northeast Algerian Sahara). | 2000 | |
| details | Late Pridolian | Czech Republic | Fatka,O. et al. Organic-walled microfossils at the Silurian/Devonian boundary stratotype (Klonk near Suchomasty, Barrandian area, Czech Republic). | 2003 |