24-Million-Year-Old Fossil Leaf from Assam Reveals Lost Southeast Asian Plant Lineage
A fossil leaf discovered in Assam’s Makum Coalfield has provided new evidence about the ancient distribution of a plant lineage that today survives only in the peat-swamp forests of Southeast Asia. The nearly 24-million-year-old fossil was found in the late Oligocene deposits of the Tikak Parbat Formation in Tinsukia district. Scientists have identified it as…