General Info

Read: THE CAMBRIAN EXPLOSION A Big Bang In The Evolution of Life from the Shape of Life book.

The Cambrian explosion was a period (540mya to 515mya) when animal life diversified rapidly. It was a time when the continents were very different from today. Here is a short article

From Evolution 101: The Cambrian Explosion. And another one from PBS Evolution: Information about the Cambrian.

Readings for Cambrian Explosion

We created readings on various aspects of the Cambrian Explosion. Below are links to those documents.

The Burgess Shale

Burgess Shale -Advanced

Cambrian Explosion Causes

Cambrian Explosion Causes- Advanced

What Came Before the Cambrian Explosion

What Came Before the Cambrian Explosion- Advanced

Stephen Jay Gould wrote a very readable book about the Cambrian Explosion. Here is a review of the book.

Ray Troll has created this fun graphic of the geologic time scale.

Cambrian Explosion

General Info


Fossil Sites


Key Concepts