Scientists Discover World's Oldest Stomach Stone Fossil

Paleontologists discovered the world's oldest stomach stone fossil, dating back 150 million years, along England's Jurassic Coast. The find, likely from a large marine reptile such as an ichthyosaur or plesiosaur, provides new insights into the diets and physiology of Jurassic marine animals, extending the fossil record of gastroliths by nearly 60 million years.