Dinosaurs or "terrible lizerds" Dinosaurs were a diverse group of reptiles that lived during the Mesozoic Era, about 230 to 66 million years ago. They ranged from tiny feathered hunters to enormous long-necked plant eaters. Examples:
Mostly meat-eaters that walked on two legs. Examples
Tyrannosaurus rex was a large carnivorous dinosaur that lived in western North America about 68–66 million years ago, during the late Cretaceous period. Commonly called T. rex, it is one of the best-known prehistoric animals and represents the apex predator of its ecosystem. Its massive skull, bone-crushing bite, and distinctive short arms make it an icon of paleontology and popular culture.
Velociraptor is a genus of small, feathered dromaeosaurid dinosaurs that lived in what is now Mongolia and northern China during the Late Cretaceous Period, about 75–71 million years ago. Known for its distinctive sickle-shaped claw and bird-like anatomy, it has become one of the most famous dinosaurs due to fossil discoveries and popular culture.
Spinosaurus was a large, semi-aquatic theropod dinosaur that lived about 99–93 million years ago during the Late Cretaceous period. Recognized for its long, crocodile-like snout and distinctive sail-like structure on its back, it is considered one of the largest known carnivorous dinosaurs, possibly exceeding Tyrannosaurus rex in length. Its anatomy indicates an adaptation to both terrestrial and aquatic hunting.
Huge long-necked herbivores. Examples
Brachiosaurus was a massive sauropod dinosaur that lived during the Late Jurassic period, about 154–150 million years ago. Distinguished by its long neck and forelimbs longer than its hind limbs, it was one of the largest land animals to have ever lived and a symbol of Jurassic megafauna.