Trilobite

Phacopida

A remarkable fossil arthropod with a three-lobed armoured body.

Devonian Morocco

Sample content • provenance shown broadly for demonstration

At a glance

Fast Facts

390 million years old

Devonian Period

Marine arthropod

Morocco

Read the evidence

The Story

Trilobites crawled across ancient seafloors for almost 270 million years. Their hard outer skeletons fossilised well, giving scientists detailed clues about early ocean ecosystems and some of the oldest complex eyes.

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Where Does It Fit?

4.6 billion years ago

Today

Devonian Period

Ancient ocean floor • Body fossil

Open this period on the Earth Timeline →