Ordovician
- Jacques VERNIERS, Alain HERBOSCH, Michel VANGUESTAINE, Fernand GEUKENS, Bernard DELCAMBRE, Jean-Louis PINGOT, Isabelle BELANGER, Michel HENNEBERT, Timothy DEBACKER, Manuel SINTUBIN & Walter DE VOS
- Cambrian-Ordovician-Silurian lithostratigraphic units (Belgium)
- volume 4 (2001)number 1-2 - Guide to a revised lithostratigraphic scale of Belgium
- Bernard MOTTEQUIN
- Earth science collections of the Centre Grégoire Fournier (Maredsous) with comments on Middle Devonian–Carboniferous brachiopods and trilobites from southern Belgium
- Volume 24 (2021)number 1-2
- Yves CANDELA & Bernard MOTTEQUIN
- Tremadocian and Floian (Ordovician) linguliformean brachiopods from the Stavelot–Venn Massif (Avalonia; Belgium and Germany)
- Volume 25 (2022)number 1-2
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