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Late Devonian (Frasnian) Asteropygine trilobites from the Frasnes area, southern border of Dinant synclinorium, Belgium
Van Viersen, A.P.; Bignon, A. (2011). Late Devonian (Frasnian) Asteropygine trilobites from the Frasnes area, southern border of Dinant synclinorium, Belgium. Geol. Belg. 14(3-4): 109-128
In: Geologica Belgica. Geologica Belgica: Brussels . ISSN 1374-8505, more
Peer reviewed article  

Available in Authors 

Keywords
Author keywords
    Trilobita, Acastidae, Devonian, Ardennes

Authors  Top 
  • Van Viersen, A.P.
  • Bignon, A.

Abstract
    The Frasnian representatives of Asteropyginae in the Frasnes area (south Belgium) have long been relatively well-documented when compared to other trilobites in the Devonian of the Ardennes (Belgium, northern France). However, examination of the type material and new collecting by the authors indicate that a taxonomic review has become necessary. Two new species of Bradocryphaeus are recorded, B. vanherlei sp. nov. and B. neptuni sp. nov.; one additional species, B. sp. 20, is known from the pygidium alone. New material is recorded of Bradocryphaeus maillieuxi (Richter & Richter), which has hitherto been scantily illustrated in the literature. The cephalon of Heliopyge helios (Richter & Richter) is redescribed on the basis of new specimens and its holotype pygidium refigured.

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