Leaf beds in the Early Miocene lacustrine deposits of the Geumgwangdong Formation, Korea: Occurrence, plant-insect interaction records, taphonomy and palaeoenvironmental implications

► Early Miocene leaf deposits in Korea are studied in palaeoenvironmental aspects. ► Leaf deposits with a wind-transported, dysaerobic, deep-water, lake taphofacies. ► Spreading to open East Sea might have caused floral migration in surrounding land.