Taxonomy and biostratigraphy of some proetid trilobites in the Middle Devonian of the Ardennes and Eifel (Rhenohercynian Zone)

Proetids are common trilobites in the Middle Devonian of the Ardennes and Eifel. They are known from ample material and so provide an excellent basis for taxonomic and biostratigraphic studies. Seven new species are recorded from the Ardennes, Belgium ( Gerastos arcus n. sp., Gerastos couvinensis n. sp., Gerastos snellingsi n. sp., Astycoryphe exilis n. sp., Astycoryphe jorusi n. sp., Cornuproetus latentissimus n. sp., Dechenella rossumi n. sp.) and four additional ones from the Eifel, Germany ( Gerastos kippingi n. sp., Gerastos batrachus n. sp., Gerastos rommersheimensis n. sp., Dohmiella ac... Mehr ...