18,000 dinosaur tracks discovered along ancient Bolivian coastline — and they set a new record

18,000 dinosaur tracks discovered along ancient Bolivian coastline — and they set a new record

Scientists have discovered a record-breaking number of fossilized dinosaur footprints and swim tracks in a national park in central Bolivia. The tracksite sits along what was once an ancient coastline, with ripple marks extending alongside the footprints and other imprints in a northwest-southeast direction, according to a new study. Most of the tracks belong to bipedal, three-toed dinosaurs known as theropods that lived at the end of the Cretac…