This meeting had to be postponed for one year due to the pandemic. It took place at the University Claude Bernard, Lyon, France, July 18-22, 2022, organized by Vincent Perrier, Marie-Béatrice Forel and Sylvie Crasquin.

A detailed report on the symposium was provided by the IRGO secretary Ilaria Mazzini.

The Symposium’s website is still live (last access Jan. 2026).

The galleries below show images of the conference, the mid-symposium excursion and the post-symposium field-trip (photos: © Vincent Perrier, Claude Meisch, Renate Matzke-Karasz).