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Your fossil could be an ammonite. Ammonites were common, sea-dwelling
creatures during the Jurassic period (150-200 million years ago) and are often
found at Lyme Regis, on the south coast of England, and Whitby, on the
north-east coast. They are not found in rocks of the Potteries area. The fact
that ammonites are common fossils, and that the evolution of different species
can clearly be seen in the fossil record, means that they are good zone fossils.
Zone fossils are distinctive species which allow the type of rock they are in to
be dated accurately.
If you want to try and identify your ammonite fossil more precisely, you
could search the
Virtual Store
or could take it to your local museum to be
identified.
Click here to search the Virtual Store.
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