Articles | Volume 35, issue 2
https://doi.org/10.1144/jmpaleo2014-033
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.1144/jmpaleo2014-033
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Upper Cretaceous radiolarians reworked in the Eocene London Clay Formation, SE England
Tom Fer
Université de Lille – Sciences et Technologies, CNRS, UMR 8198 Evo-Eco-Paleo, F 59655 Villeneuve d'Ascq, France
Taniel Danelian
Université de Lille – Sciences et Technologies, CNRS, UMR 8198 Evo-Eco-Paleo, F 59655 Villeneuve d'Ascq, France
Haydon W. Bailey
Network Stratigraphic Consulting Ltd, Harvest House, Cranborne Road, Potters Bar, Hertfordshire EN63JF, UK
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Veronica Carlsson, Taniel Danelian, Pierre Boulet, Philippe Devienne, Aurelien Laforge, and Johan Renaudie
J. Micropalaeontol., 41, 165–182, https://doi.org/10.5194/jm-41-165-2022, https://doi.org/10.5194/jm-41-165-2022, 2022
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This study evaluates the use of automatic classification using AI on eight closely related radiolarian species of the genus Podocyrtis based on MobileNet CNN. Species belonging to Podocyrtis are useful for middle Eocene biostratigraphy. Numerous images of Podocyrtis species from the tropical Atlantic Ocean were used to train and validate the CNN. An overall accuracy of about 91 % was obtained. Additional Podocyrtis specimens from other ocean realms were used to test the predictive model.
Mathias Meunier and Taniel Danelian
J. Micropalaeontol., 41, 1–27, https://doi.org/10.5194/jm-41-1-2022, https://doi.org/10.5194/jm-41-1-2022, 2022
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This study presents the biostratigraphic analysis of radiolaria (siliceous zooplankton) from a section of middle Eocene age located in the equatorial Atlantic. Our study allows the refinement of the age of 71 radiolarian bioevents. Based on a comparison with previously reported ages in the equatorial Pacific and northwestern Atlantic, we establish the synchronicity of several bioevents between the two oceans. Some of these synchronous bioevents were used to define seven new subzones.
Lei Zhang, Taniel Danelian, Qinglai Feng, Thomas Servais, Nicolas Tribovillard, and Martial Caridroit
J. Micropalaeontol., 32, 207–217, https://doi.org/10.1144/jmpaleo2013-003, https://doi.org/10.1144/jmpaleo2013-003, 2013
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