This is probably Alex's finest find to date. An eight-year-old is that bit smaller (and very keen), which seems to make it easier to find such items. We are still finding out about this tooth but it seems likely it came from a marine reptile. He found it in a pile of clay/shale dumped next to one of the footpaths in the new Hampton housing development near Peterborough. It ain't all that big (the scale is in mm) but it is in excellent condition considering it is over 65 million years old.