'Dinosaur highway' tracks dating back 166 million years discovered in England

Workers uncover five extensive trackways that formed part of a “dinosaur highway,” at Dewars Farm Quarry in Oxfordshire, England, in this undated photo released Jan. 2, 2025. A newly uncovered dinosaur footprint is seen at Dewars Farm Quarry, in Oxfordshire, England, in this undated photo provided by Oxford University Museum of Natural History and the University of Birmingham on Jan. 2, 2025.

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.