My son recently found this:
while walking at Waterloo Bay in Northern Ireland. It looks (to my untrained eye) like it could be a plant fossil. Is this correct? If so, is it possible to tell anything more about it?
It was found at the boundary of the Triassic and Jurassic layers, but had been broken free so might have come from elsewhere. The rock type matches the Jurassic layers. The included photograph covers a height of 15-20cm.