Salkhan Fossil Park: Recently

Salkhan Fossil Park: Recently, Salkhan Fossil Park in Uttar Pradesh has been included in UNESCO’s Tentative List for World Heritage Sites—a step toward gaining global recognition for its unique fossil heritage.

• About Salkhan Fossil Park: Also called Sonbhadra Fossils Park, it is located in Uttar Pradesh, within the Kaimoor Wildlife Sanctuary and the Vindhyan mountain range.

o The park holds fossils that are about 1.4 billion years old, making it one of the oldest and best-preserved fossil sites in the world.

o It is especially known for its stromatolites—rock-like structures formed by cyanobacteria (blue-green algae), which are among the earliest forms of life on Earth.

o The park contains prehistoric stromatolites, dating back to the Mesoproterozoic Era (over a billion years ago).

o It is older than other famous fossil sites like Shark Bay in Australia and Yellowstone in the USA.

o These fossils are linked to the Great Oxidation Event, a major shift in Earth’s atmosphere that allowed complex life to evolve.

• Geological Importance: The park shows a wide variety of stromatolite shapes—from dome-like to column-like structures. These formations reveal important details about the environmental conditions at the time, such as water depth, sediment flow, and wave patterns.

o It is recognized under the IUCN’s key geo-heritage category of “Evolution of Life” in its 2020 geo-conservation guidelines.