Geological Time

• Geological time is the long period of time occupied by the Earth's geologic history.

• There are four major eras in Earth's geologic history.

• There are twelve periods in our geologic history.

Did you know that...

• Woolly Mammoths were roaming the Earth when the Pyramids were built.

• The Earth experienced more than 1 million years of rainfall during the Carnian Pluvial episode

• The planet only started making oxygen 2.5 billion years ago