https://apnews.com/3e9865a26459f76e9c65d5102f17b240 > Plant-eating dinosaurs probably arrived in the Northern Hemisphere millions of years after their meat-eating cousins, a delay likely caused by climate change, a new study found. > A new way of calculating the dates of dinosaur fossils found in Greenland shows that the plant eaters, called sauropodomorphs, were about 215 million years old, according to a study in Monday’s Proceedings of the National Academy of Sciences. The fossils previously were thought to be as old as 228 million years.