The Origin of the Dinosaurs: How the History of the Dinosaurs REALLY Happened | History Documentary
🌍 If we go back in history to the arrival of the very first dinosaurs, we should find ourselves in the Triassic period around 250 million years ago. It was at this time, after an unprecedented biological crisis, that the dinosaurs arrived on Earth.
Our planet has experienced several mass extinctions, including the one that put an end to the existence of non-avian dinosaurs some 165 million years later. The latter is undoubtedly the most popular with the general public. But what is less well known is that it was neither the only nor the most important one.
The extinction that marks the end of the Permian and the beginning of the Triassic, which we’re about to look at, was like no other. It was the most devastating extinction of all.
This mass extinction occurred around 252 million years ago. As we’ve seen, it marks the boundary between the Permian and Triassic geological periods, and thus between the Paleozoic and Mesozoic eras.
And the era of the dinosaurs is the
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