A worker digging up clay in a southern England limestone quarry noticed unusual bumps that led to the discovery of a 'dinosaur highway' and nearly 200 tracks that date back 166 million years, researchers said Thursday.
A worker digging up clay in a southern England limestone quarry noticed unusual bumps that led to the discovery of a 'dinosaur highway' and nearly 200 tracks that date back 166 million years, researchers said Thursday.