Dinosaur - Wikipedia
Dinosaurs were the dominant terrestrial vertebrates of the Mesozoic Era, especially the Jurassic and Cretaceous periods.
List of dinosaur genera - Wikipedia
This list of dinosaurs is a comprehensive listing of all genera that have ever been considered to be non-avialan dinosaurs, but also includes some dinosaurs of disputed status as non-avian, as …
Dinosaur - Simple English Wikipedia, the free encyclopedia
Dinosaurs are a group of Archosaur reptiles of the clade Dinosauria. [1] Dinosaurs eventually gave rise to birds. Dinosaurs were the most powerful land animals of the Mesozoic era. Over …
Dinosaur size - Wikipedia
Dinosaurs show some of the most extreme variations in size of any land animal group, ranging from tiny hummingbirds, which can weigh as little as two grams, to the extinct titanosaurs, …
Dinosaur | Definition, Types, History, Names, & Facts | Britannica
2025年1月18日 · 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. …
Dinosaurs ‑ Extinction, Timeline & Definition - HISTORY
2009年10月27日 · The prehistoric reptiles known as dinosaurs arose during the Middle to Late Triassic Period of the Mesozoic Era, some 230 million years ago.
A to Z List of Over 700 Dinosaur Names - ThoughtCo
2024年5月2日 · Explore an A-to-Z list of over 700 dinosaurs that lived during the Triassic, Jurassic, and Cretaceous periods. How many dinosaur names do you know?
What Makes a Dinosaur a Dinosaur - U.S. National Park Service
2022年7月8日 · What makes a dinosaur a dinosaur? There are several ways of answering this question, some more accurate (and useful!) than others. A popular but very inaccurate …
Dinosaur - Extinction, Fossils, Evolution | Britannica
3 天之前 · Dinosaur - Extinction, Fossils, Evolution: Dinosaurs lived in many kinds of terrestrial environments, and although some remains, such as footprints, indicate where dinosaurs …
Dinosaurs 101 - Education
2024年9月26日 · 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 …