Figure 1

Map of northern Vietnam showing the Cenozoic tectonic basins and the localization of the Na Duong locality. This map was generated with MapInfo Pro 12 (https://www.infosig.net/).

Map of northern Vietnam showing the Cenozoic tectonic basins and the localization of the Na Duong locality. This map was generated with MapInfo Pro 12 (https://www.infosig.net/).