“…In this context lots of geomorphological, palynological, diatomological, macrofossil, as well as palaeoecological studies were performed since the late 1990s by the research group of Hervé Cubizolle at the University of Saint-Etienne (France), thanks to the interdisciplinary environmental PIREN-Program ("Programme Interdisciplinaire de Recherches sur l'Environnement") of the French National Research Centre (CNRS), which since 2001 became the "Zone Atelier Loire". This research was also supported by the Regional Directorate of Cultural Affairs (DRAC), the AGES program ("Ancient Geomorphological Evo-lutionS of the Loire"), and the "Etablissement Public Loire" (Argant and Cubizolle, 2005;Cubizolle, 2005;Cubizolle et al, 2005Cubizolle et al, , 2012Cubizolle et al, , 2013Cubizolle et al, , 2014Cubizolle et al, , 2015Cubizolle et al, , 2016Serieyssol et al, 2011Serieyssol et al, , 2012Dendievel et al, 2015Dendievel et al, , 2019Dendievel et al, , 2020Fassion et al, 2015;Dendievel, 2017). In addition, substantial palaeoecological studies concerned the formerly neglected areas, such as the Morvan Mountains (Jouffroy-Bapicot, 2010; Jouffroy- Bapicot et al, 2008Bapicot et al, , 2013.…”