The 450-million-year-old fossilized corpse of a new spider species has been discovered preserved by fool’s gold. A research team from the University of Oxford discovered the fossil at Beecher's Trilobite Bed in New York, a layer of rock which is famously home to many well-preserved fossils . Scientists determined that the new species is a distant relation to other arachnids such as horseshoe crabs and scorpions, per the BBC . They belong to a group of arthropods called m...