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. Dinosaur evolution, extinction, types, plus interesting facts. Over a thousand dinosaur species once roamed the earth
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Learn which ones were the largest and the smallest, what dinosaurs ate and how they behaved, as well as surprising facts about their.
Get to know the different types of these reptiles that dominated the earth before mammals here
Since there is no way to confirm and classify all the dinosaur families, there is no official taxonomy for them. Dinosaur, the common name given to a group of reptiles, often very large, that first appeared roughly 245 million years ago and thrived worldwide for nearly 180 million years. Delve into these fast facts about dinosaurs for kids of all ages Discover why the tyrannosaurus had sharp teeth, where the name “dinosaur” comes from, and more
Dinosaurs are a group of reptiles that have lived on earth for about 245 million years. An argument over whether fossils from several small dinosaurs represent a juvenile tyrannosaurus rex or smaller adults of a separate species may finally be settled. Scientists estimate over a thousand dinosaur species once roamed earth Learn which ones were the largest and the smallest, what dinosaurs ate and how they behaved, as well as surprising facts about their extinction.
“there’s kind of a misconception that any big extinct thing was a dinosaur,” smith says
In fact, dinos are a specific group of reptiles They have been around continuously for more than 200 million years. Complete guide to dinosaurs, with list of dinosaurs from each period
