Jurassic Period | Climate, Plants, Animals, & Facts | Britannica
https://www.britannica.com/science/Jurassic-Period
WEBApr 5, 2024 · Jurassic Period, second of three periods of the Mesozoic Era. Extending from 201.3 million to 145 million years ago, the Jurassic was a time of global change in the continents, oceanographic patterns, and biological systems. On land, dinosaurs and flying pterosaurs dominated, and birds made their first appearance.
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