Geologica Belgica

1374-8505 2034-1954


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Mots-clés : lithostratigraphy, Belgium, KEYWORDS: Frasnian, Historical background, Reference sections, Conodonts.


ABSTRACT. The name Frasnian, which comes from the locality of Frasnes near Couvin in Belgium, was introduced by Gosselet in 1879 and was formally retained for the lower stage of the Upper Devonian by the Subcommission on Devonian Stratigraphy in 1981. The modern definition of the Frasnian is based on conodonts and the historical background of the stage is developed in detail herein. Data about the lithostratigraphy, sedimentology, biostratigraphy, chronostratigraphy and absolute age of the Frasnian can also been found in this contribution.

To cite this article

Marie COEN-AUBERT & Frédéric BOULVAIN, «FRASNIAN», Geologica Belgica [En ligne], volume 9 (2006), number 1-2 - Chronostratigraphic units named from Belgium, 19-25 URL :

About: Marie COEN-AUBERT

Département de Paléontologie, Institut royal des Sciences naturelles de Belgique, rue Vautier 29, B-1000 Bruxelles; E-mail:

About: Frédéric BOULVAIN

U.R. Pétrologie sédimentaire, B20, Université de Liège, Sart Tilman, B-4000 Liège; E-mail: