For the first time, two researchers have accurately dated the arrival of the first herbivorous dinosaurs in East Greenland. Their results demonstrate that it took the dinosaurs 15 million years to migrate from the southern hemisphere, as a consequence of being slowed down by extreme climatic conditions. Their long walk was only possible because as CO2 levels dropped suddenly, the Earth’s climate became less extreme.
Click here for original story, An epic walk: 15 million years needed for dinosaurs to get from South America to Greenland
Source: ScienceDaily