Borassodendron machadonis pollen occurred throughout the Holocene pollen record of Nong Thale Song Hong, Thailand, until about 4000 BP. It was also present in one sample from Khok Phanom Di, Thailand, and in the Mahakam Delta, Kalimantan, records, but B. machadonis has not been reported from the modern flora of Kalimantan. Borassodendron machadonis pollen differs greatly from that of B. borneense, which is found on the island of Borneo.