The Triassic period stands out in Earth’s history as the time when dinosaurs first evolved. It was followed by the Jurassic and Cretaceous periods – at the end of the latter, the dinosaurs were wiped ...

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A group of scientists has chosen a small lake near the U.S.-Canada border as the site that best represents the Anthropocene Epoch—a proposed period of geologic time marked by humans’ drastic impact on ...