DID YOU KNOW? The Geologic Time Scale is a timeline that records Earth’s history, dividing it into eons, eras, periods, and epochs. It helps geologists understand when major events like mountain building, mass extinctions, and the rise of life occurred. Follow Geomark Geoscience Education for more fascinating geological insights and discoveries. #Geology #EarthHistory #ScienceFacts | Geomark Geoscience Education

Earth’s history includes five major mass extinctions, with up to 95% of species lost in events driven by impacts, volcanic eruptions, or potentially solar outbursts. The terminal Pleistocene extinction, though not part of the “Great Five,” saw the disappearance of North America’s megafauna, focusing on top predators and large mammals. | The Randall Carlson