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Communication of IUGS Geological Standards

Episodes 2021; 44(2): 129-150

Published online June 1, 2021

https://doi.org/10.18814/epiiugs/2020/020072

Copyright © International Union of Geological Sciences.

The Global Boundary Stratotype Section and Point (GSSP) for the base of the Hauterivian Stage (Lower Cretaceous), La Charce, southeast France

by Jörg Mutterlose1*, Peter F. Rawson2, Stéphane Reboulet3, with contributions by François Baudin4, Luc Bulot5, Laurent Emmanuel4, Silvia Gardin6, Mathieu Martinez7, and Maurice Renard4

1 Institut für Geologie, Mineralogie und Geophysik, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
2 Department of Geography, Geology and Environment, University of Hull, Cottingham Road, Hull HU6 7RX, and Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT, United Kingdom
3 Univ Lyon, Univ Lyon 1, ENSL, CNRS, LGL-TPE, F-69622, Villeurbanne, France
4 Sorbonne Université, Institut des Sciences de la Terre de Paris, ISTeP UMR CNRS 7193, 4, place Jussieu, 75005, Paris, France
5 CEREGE - Aix-Marseille Université, France; Research Associate, Lead Biostratigraphy Team, NARG, University of Manchester, United Kingdom
6 Sorbonne Université, MNHN, CNRS, Centre de Recherche sur la Paléobiodiversité et les Paléoenvironnements, CR2P, 75005 Paris, France
7 Univ Rennes, CNRS, Géosciences Rennes - UMR 6118, 35000 Rennes, France

Correspondence to:*E-mail: joerg.mutterlose@rub.de

Received: June 30, 2020; Revised: July 9, 2020; Accepted: July 9, 2020

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Following votes by the Hauterivian Working Group, the Cretaceous Subcommission and the International Commission on Stratigraphy, in December 2019 the Executive Committee of the International Union of Geological Sciences unanimously approved the proposal that the Global Stratotype Section and Point (GSSP) for the base of the Hauterivian Stage of the Lower Cretaceous be placed at the base of bed n° 189 of the La Charce section, Drôme, southeast France (Vocontian Basin). This level is marked by the first appearance of the ammonite genus Acanthodiscus, which defines the base of the Acanthodiscus radiatus ammonite Zone. Complementary data include 13 ammonite and nannofossil events, and magnetostratigraphic and carbon isotope events.