It’s official — you’re living in a new age. It’s called the Meghalayan, and geologists say it's marked by a 'mega-drought' and the collapse of civilizations 4,200 years ago.

Understanding the geologic time scale and how to organize Earth’s history into a coherent timeline. MS-LS4-1: Analyze and interpret data for patterns in the fossil record that document the existence, ...

Reston, VA – The U.S. Geological Survey (USGS) and the Association of American State Geologists (AASG) announced that they have developed an updated geologic time scale and color scheme for use ...

- Understanding the geologic time scale and how to organize Earth’s history into a coherent timeline. MS-LS4-1: Analyze and interpret data for patterns in the fossil record that document the existence ...