Journal
GEOLOGICAL MAGAZINE
Volume 154, Issue 4, Pages 888-902Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S001675681600039X
Keywords
conodonts; Devonian-Carboniferous boundary; biostratigraphy; biozonation
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Funding
- RAS [LR7/07-2010]
- PGI-NRI Project [61.2908.1304.00.0]
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This paper is a contribution to the redefinition of the base of Carboniferous system. At present the criterion for the definition of the Devonian-Carboniferous boundary is the first occurrence of a conodont species. In order to evaluate the stratigraphic potential for new criteria for the definition of the Devonian-Carboniferous boundary, the distribution of conodont species of Bispathodus, Branmehla, Palmatolepis, Polygnathus, Protognathodus, Pseudopolygnathus and Siphonodella across the boundary is presented and discussed. An updated biozonation scheme across the boundary based on the First Appearance of Bispathodus ac. aculeatus, Bispathodus costatus, Bispathodus ultimus, Protognathodus kockeli, Siphonodella bransoni and Siphonodella duplicata is proposed, and it is suggested that the new criterion for the definition of the base of the Carboniferous system be the First Appearance Datum of Pr. kockeli or Si. bransoni.
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