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Eons•Season 1•Episode 19

A Brief History of Geologic Time

Nov 6, 201710 min

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

Previous episodeE18 · An Illustrated History of Dinosaurs Next episodeE20 · The Search for the Earliest Life

Seasons6

All 1 2 3 4 5 6

Season 1 Episodes24

The Trouble With Trilobites

When Did the First Flower Bloom?

The Tully Monster & Other Problematic Creatures

Stegosaurs: Tiny Brains & Thagomizers

What Colors Were Dinosaurs?

The Story of Saberteeth

That Time Oxygen Almost Killed Everything

The Biggest Thing That Ever Flew

Dimetrodon: Our Most Unlikely Ancestor

The Extinction That Never Happened

The Strange Case of the Buzzsaw Jaws

The Age of Giant Insects

History's Most Powerful Plants

How Did Dinosaurs Get So Huge?

When The Earth Was Purple

'Living Fossils' Aren't Really a Thing

When Whales Walked

An Illustrated History of Dinosaurs

A Brief History of Geologic Time

The Search for the Earliest Life

The Facts About Dinosaurs & Feathers

The Last Time the Globe Warmed

What Happened to the World's Greatest Ape?

When Giant Fungi Ruled

Cast3

K

Kallie Moore

Self

B

Blake de Pastino

Self

Hank Green

Hank Green

Self

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Episode Summary

"A Brief History of Geologic Time" is episode 19 of Eons season 1. It aired on November 6, 2017.

Next: E20 · The Search for the Earliest Life Best of Season 1