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

By looking at the layers beneath our feet, geologists have been able to identify and describe crucial episodes in life’s history. These key events frame the chapters in the story of life on earth and the system we use to bind all these chapters together is the Geologic Time Scale. | Eons • PBS