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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.
- Extinction
The trilobite Modocia typicalis lived during the middle of...
- Thyreophora
Table of Contents The Thyreophora consist mainly of the...
- Classification
Dinosaur - Reptiles, Extinction, Fossils: The chief...
- Body Temperature
Dinosaur - Endothermic, Thermoregulation, Homeothermy:...
- Dinosaur Ancestors
An early candidate for the ancestor of dinosaurs was a small...
- Herding Behaviour
Dinosaur - Herding, Socialization, Adaptation: Fossil...
- Natural History
Dinosaur - Extinction, Fossils, Evolution: Dinosaurs lived...
- The Asteroid Theory
Dinosaur - Asteroid Theory, Extinction, Fossils: The...
Find out whether dinosaurs really had feathers- How were dinosaurs discovered?
- Learn about the discovery of dinosaur “Sue” and the competition between collectors
- Did Humans Live at the Same Time as Dinosaurs?
- What Happened to the Dinosaurs?
- 6 Awesome Dinosaur Species You Should Know
- Did Dinosaurs Really Have Feathers? Learn more.
- Titanosaurs: 8 of the World's Biggest Dinosaurs
- Extinction
1 day ago · Dinosaurs known from the Morrison include the theropods Ceratosaurus, Koparion, Stokesosaurus, Ornitholestes, Allosaurus and Torvosaurus, the sauropods Brontosaurus, Apatosaurus, Brachiosaurus, Camarasaurus, and the ornithischians Camptosaurus, Dryosaurus, Othnielia, Gargoyleosaurus and Stegosaurus.
4 days ago · Mounted skeletons of Tyrannosaurus (left) and Apatosaurus (right) at the AMNH. Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.
4 days ago · Turannosaurus rex, species of large predatory theropod dinosaurs that lived during the end of the Cretaceous Period (about 66 million years ago) known from fossils found in the United States and Canada dating to between about 80 million and 66 million years ago.
- John P. Rafferty
3 days ago · Dinosaur - Extinction, Fossils, Evolution: Dinosaurs lived in many kinds of terrestrial environments, and although some remains, such as footprints, indicate where dinosaurs actually lived, their bones tell us only where they died.
4 days ago · As one of the first scientifically well-known dinosaurs, Iguanodon has occupied a small but notable place in the public's perception of dinosaurs, its artistic representation changing significantly in response to new interpretations of its remains.
3 days ago · All about dinosaurs. Read about dinosaur discoveries including gigantic meat-eating dinosaurs, earliest dinosaurs and more. Dinosaur pictures and articles.
