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Conodontes et Sédimentologie des couches de passage du Givetien au Frasnien dans le Nord du Tafilalt et dans le Ma’der (Maroc Présaharien)
Bultynck, P.; Jacobs, L. (1981). Conodontes et Sédimentologie des couches de passage du Givetien au Frasnien dans le Nord du Tafilalt et dans le Ma’der (Maroc Présaharien). Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 53(2): 24 pp., 6 figs, 10 pls
In: Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Aardwetenschappen = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Sciences de la Terre. KBIN: Brussel. ISSN 0374-6291, more
Peer reviewed article  

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Keywords
    Devonian; Devonian, Middle; Devonian, Upper; Frasnian; Givetian; Conodonta; Africa, Morocco [Marine Regions]; Marine

Authors  Top 
  • Bultynck, P., more
  • Jacobs, L.

Abstract
    Stratigraphically important conodonts relevant to the Givetian-Frasnian boundary are listed from one section in the Tafilalt area and from threein the Ma'der area. The conodont succession from the Middle Polygnathus varcus Subzone and extending into the Middle Polygnathus asymmetricus Zone is described. The corresponding goniatite sequence ranges from the last occurrence of Maenioceras terebratum into beds containing Manticoceras and Beloceras kayseri. The sedimentology of the beds sampled for conodonts at the Tafilalt section and at two of the Ma'der sections is discussed. The conodont Ancyrodella binodosa is fully described;other relevant taxa are briefly discussed.

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