This is part of a jawbone and teeth of an ichthyosaur.
This huge sea reptile lived over 100 million years ago at the same time as the dinosaurs, when warm seas covered Kent.
They hunted fish which they caught in their sharp cone-shaped teeth.
The largest could grow up to 16 metres (longer than a bus).
This fossil was discovered in the area around Lyme Regis and eventually end up in Folkestone Museum, as an example of what swam off Folkestone's shores millions of years ago. You can see it on display in Folkestone Museum.
Did you know?
Some of the earliest specimens were collected by Mary Anning at Lyme Regis in Dorset in 1812 when she was still a young girl.
Ichthyosaur artist reconstruction image courtesy of Wikimedia Commons (free for non-commercial use)
