Cambrian ocean world: ancient sea life of North America

Natural mystic : an introduction to the Cambrian

Into the heart : Cambrian geology

A long strange trip : the first 4000 million years of earth history

Welcome to the boomtown : the early Cambrian seas

On top of the world : the middle Cambrian begins

Magical mystery tour : the biological psychedelia of the burgess shale

Glory days : the later middle Cambrian

Taking off : the late Cambrian

Home by the sea : a closer look

On and on : legacy of the explosion

Glossary.