Cooling Oceans Did Trigger Ordovician Biodiversiｦcation Daniel Eliahou Ontiveros (  danyeo@hotmail.fr ) Univ. Littoral Côte d’Opale, CNRS, Univ. Lille, UMR 8187 LOG Grégory Beaugrand (  gregory.beaugrand@univ-lille.fr ) Univ. Littoral Côte d’Opale, CNRS, Univ. Lille, UMR 8187 LOG https://orcid.org/0000-0002-0712-5223 Bertrand Lefebvre (  bertrand.lefebvre@univ-lyon1.fr ) Univ Lyon, Univ Lyon 1, ENSL, CNRS, LGL-TPE https://orcid.org/0000-0002-3803-9176 Chloé Markussen Marcilly (  c.f.m.marcilly@geo.uio.no ) Centre for Earth Evolution and Dynamics, University of Oslo Thomas Servais (  thomas.servais@univ-lille.fr ) Univ. Lille, CNRS, UMR 8198-Evo-Eco-Paleo Alexandre Pohl (  alexandre.pohl@u-bourgogne.fr ) Biogéosciences, UMR 6282 CNRS, université Bourgogne Franche-Comté https://orcid.org/0000-0003- 2328-351X Article Keywords: DOI: https://doi.org/ License:   This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Additional Declarations: There is NO Competing Interest.