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Dinosaurs were southerners. The famous group dominated the world for tens of millions of years and left behind fossils on every major landmass, which has led to some confusion over where the very first dinosaurs were born. Two new studies pile on the evidence that the earliest dinosaurs lived in South America or one of the other southern continents.
When the first dinosaurs appeared, roughly 240 or 250 million years ago, Earth’s continents were united in the supercontinent Pangaea. In principle dinosaurs could have arisen …