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The Silurian, Ordovician and the Cambrian

Fossil
Did you know what this fossil was?


It is a type of mollusc called a nautiloid. Nautiloids are related to ammonites and other animals like squid. This one was found near Ludlow in Shropshire and is from the Silurian period. It is just over 420 million years old.

This type of nautiloid has a long straight shell. Most fossil, and all modern, nautiloids have coiled shells, and look more like ammonites.


Find out more about nautiloids
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