A fossilised sea urchin
All the rocks around the Lavingtons are sedimentary, so it is little wonder that fossils are found from time to time.
This sea urchin was found in a White Street garden, probably in an area where the bed rock is actually clay. This does not look like clay which is soft and crumbly so may well have been brought from elsewhere. It is possible that it is a flint in which case it may have been used, once, as building material.
At something around 10 million years old (plus or minus a huge amount) this will be one of the oldest artefacts we have in the museum.
Can any geologist help us sort out any likely origin for this rather attractive fossil?