Dinosaurs dominated Mesozoic terrestrial ecosystems globally. However, whereas a pole-to-pole geographic distribution characterized ornithischian and theropod dinosaur, giant sauropods were restricted to lower latitudes. Theropods probably warmed eggs by sitting on them, whereas ornithischians seem to have used heat generated by decaying plants. “Sauropods may have had a unique in-between physiology, closer to being cold-blooded than other dinosaur types,” the researchers said. Climatic constraints on the biogeographic history of Mesozoic dinosaurs.

Source: Ethiopian News December 18, 2021 09:30 UTC