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Type: Journal article
Title: The extent of the Middle Ordovician Dapingian Stage in peri-Gondwanan Europe and north Africa: Stratigraphic record, biostratigraphic tools and regional chronostratigraphy
Author: Gutiérrez-Marco, J.
Sá, A.
Garcia-Bellido, D.
Rábano, I.
Citation: GFF, 2014; 136(1):90-94
Publisher: Taylor & Francis
Issue Date: 2014
ISSN: 1103-5897
Statement of
Juan Carlos Gutiérrez-Marco, Artur Abréu Sá, Diego Capdevila García-bellido and Isabel Rábano
Abstract: The boundaries and subdivisions of the global Dapingian stage cannot be adequately characterized in the extensive south-polar Gondwana continental shelves. Correlatable sediments, dated to some extent by palynomorphs, are generally highly condensed in shale facies (<10m thick) or are entirely lacking, whereas in shallow-water sandstones they may locally reach more than 100 m thick. In the absence of valuable data derived from key macrofossils (graptolites and conodonts), the regional chitinozoan biostratigraphy has gone through numerous conceptual variations in the last twenty years, which has not helped a precise definition of the base of the Dapingian, provisionally included in the ‘upper’ Arenigian regional stage of peri-Gondwana.
Keywords: Ordovician; Dapingian; Gondwana margin; regional chronostratigraphy;Chitinozoan biostratigraphy; Europe
Rights: © Geologiska Föreningen
DOI: 10.1080/11035897.2013.865667
Appears in Collections:Aurora harvest 4
Earth and Environmental Sciences publications

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