The history of life on Earth has been punctuated by several mass extinctions, the greatest of these being the Permian-Triassic extinction event, also known as the 'Great Dying', which occurred 252 million years ago.
Srinagar (Jammu and Kashmir) [India], October 23 (ANI): A field workshop was organised on Saturday on the repository of the Permian Triassic mass extinction event to adopt the 252 million-year-old Guryul Ravine fossil site in Khanmoh area of Jammu and Kashmir's Srinagar.