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A revision of Devonian trilobites from Belgium - Part 1 The Genera Cornuproetus and Radiaspis
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Goldius angusticalix Sp. Nov. (Trilobita, Scutelluidae) from the Couvin Formation (Middle Devonian) in Belgium, with a preliminary list of Scutelluid Species from the Ardennes
Taxonomy and biostratigraphy of some proetid trilobites in the Middle Devonian of the Ardennes and Eifel (Rhenohercynian Zone)