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The Silurian, Ordovician and the Cambrian

Fossil Did you know what these fossils were?

These are fossil crinoids or sea lilies. They were found near Dudley in the West Midlands. They are from the Silurian period, and are about 425 million years old.

Sea lilies are echinoderms - they are related to starfish and sea urchins.

Find out more about echinoderms
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