The earliest morphological traces of life on Earth are often highly controversial, both because non-biological processes can produce relatively similar structures and because such fossils have often been subjected to advanced alteration and metamorphism. Stromatolites, layered organo-sedimen
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.
Washington D.C. [USA], August 20 (ANI): Killer cosmic rays from nearby supernovae could be the culprit behind at least one mass extinction event, researchers said, and finding certain radioactive isotopes in Earth's rock record could confirm this scenario.
Washington D.C. [USA], Sept 15 (ANI): Researchers have recently learned about a new catastrophic mass-extinction event that happened around 260 million years ago.