Fossils as thunderstones
In many parts of southern England until the middle of the nineteenth century, another name commonly used for fossil Echinoids was ‘thunderstone’, though other fossils such as belemnites and (rarely) ammonites were also used for this purpose. In 1677 Dr. Robert Plot, the first keep
Humans have been interested in echinoid fossils (the fossilised remains of sea urchins) for millennia, considering them lucky and imbuing them with magical powers linked to their deities
A folk tradition in Denmark and southern England imagined sea urchin fossils to be thunderbolts, able to ward off harm by lightning or by witchcraft, as an apotropaic symbol. Another version supposed they were petrified eggs of snakes, able to protect against heart and liver disease, poisons, an