Description

The Cambrian explosion, the relatively rapid, lasting 70 million years, appearance of most major animal phyla accompanied by major diversification of organisms, begins

Location

Earth

Rate

Very important (8)

Sphere

General

Images

Marrella, an arthropod from the middle Cambrian Burgess Shale of British Columbia Maotianshania cylindrica, a fossil nematomorph worm, Early Cambrian Trilobites, the first discovered Cambrian fossils

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