A follow up of the “Paleobiodiversity in South-East Asia” session that was organised during the 5th International Paleontological Congress in Paris in 2018. It is designed to answer the need for an international social and scientific event considering the growing interest in the international scientific community regarding the dynamic of past biodiversity in what is considered as one of the most threatened biodiversity hotspots today. The workshop will welcome presentations covering all geological and historical periods, from the deep to the recent past. It is therefore open to topics in paleobiology, paleontology, evolution, anthropology, phylogeography, extinction and diversification processes. We shall accept reviews, but the priority will be given to original studies and recent discoveries.