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Dinosaurs are a diverse group of reptiles [note 1] of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is a subject of active research.
Jun 29, 2018 · Over a thousand dinosaur species once roamed the Earth. Learn which ones were the largest and the smallest, what dinosaurs ate and how they behaved, as well as surprising facts about their ...
3 days ago · Learn about dinosaurs, the diverse group of reptiles that dominated Earth for millions of years and evolved into birds. Explore their origin, extinction, classification, fossil record, and more with Britannica.
Jul 31, 2019 · Learn about the two leading theories for what killed the dinosaurs 66 million years ago: a giant meteor impact or massive volcanic eruptions. Explore the evidence, the challenges, and the controversies behind this scientific mystery.
Explore the world of dinosaurs with National Geographic's collection of articles, videos, infographics, and more. Learn about dinosaur evolution, extinction, fossils, feathers, pterosaurs, mosasaurs, and more.
Learn about dinosaurs, their fossils, and how paleontologists study them. Discover the diversity, evolution, and extinction of non-avian dinosaurs and their living descendants, birds.
Jun 6, 2024 · If you’ve enjoyed reading this page, tell your friends, share it on social media using the share buttons provided, or link to this page from your own website! Complete guide to dinosaurs, with list of dinosaurs from each period. Dinosaur evolution, extinction, types, plus interesting facts.
