The world's largest known scorpion lived at a time when other land animals were relatively small, around 415 million years ago in what is now the U.K., a new study finds.

The prehistoric creature, named Praearcturus gigas, is estimated to have grown to lengths of around 3.3 feet (1 meter) and was equipped with formidable pincers measuring roughly 6.2 inches (16 centimeters) long, according to a statement from the University of Manchester.