Geologic Time is a crucial concept to understanding the history of the earth—including the evolution of life. Many different representations of the timeline have been created, and many approaches ...

Geologic Timescale Explain that scientists also like to sort events in the order they have happened. Show the geologic timeline OK, that looks overwhelming at first! Let's break it down. First, see ...

Usually, geologic layers build on one another, with younger rocks piling on top of older ones. A new study, however, shows ...

The Interactive Geology Project was formed in 2002 by Professor Paul Weimer and colleagues to animate Colorado’s geologic history and explore new ways of using 3D technology in earth science education ...

The Geologic Time Scale -- all 4.56 billion years of it -- is the way Earth scientists converse about time. It started off based on the relative occurrence of fossils and the periods were named after ...

Dividing up deep time The geologic time scale provides the official framework for our understanding of Earth’s 4.5 billion-year history.

Fossils from Earth’s biggest extinction reveal forest collapse triggered runaway warming - offering a warning for today’s ...

Season 6 Episode 13 | 11m 57s | CC What are animal-like fossils doing in rocks a billion years old, and what does that mean for our understanding of their evolution and geologic time itself?

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, ...