archiveHistory of dinosaur

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History Of Dinosaurs

If you wish to learn more about History of dinosaur,which covers the topic in-depth. Here is a brief overview of the history of dinosaurs: Dinosaurs first appeared on Earth during the Triassic period, around 247 million years ago. They were the dominant land animals for 140 million years, from the Triassic period through the end of the Cretaceous period.