A 65-lakh-year-old fossilised lower jaw of a giant prehistoric elephant-like mammal, measuring about 10.5 feet in height, has been found in Narmada Valley in MP. Updated On: 15 November, 2026 11:37 AM IST | Raisen (Madhya Pradesh) | PTI. The fossil, believed to belong to the extinct Stegodon namadicus species, was exposed by river erosion near Patai village in Deori tehsil, around 100 km from the district headquarters.