CO2 dip may have helped dinosaurs walk from South America to Greenland - Phys.org

A new paper refines estimates of when herbivorous dinosaurs must have traversed North America on a northerly trek to reach Greenland, and points out an intriguing climatic phenomenon that may have helped them along the journey. https://phys.org/news/2021-02-co2-dip-dinosaurs-south-america.html