Dinosaurs are a diverse group of warmblooded reptiles [note 1] of the clade Dinosauria. They existed through most of the Mesozoic era, first appearing early in the Triassic period.

Mar 21, 2026 · List of dinosaurs, with facts & information. Dinosaur names with pictures, a complete online reference. Learn about famous & lesser-known Mesozoic species.

Jun 12, 2026 · 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.

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 ...

Mar 27, 2025 · The word “dinosaur” isn’t a catch-all term for just any scaly, prehistoric giant. “There’s kind of a misconception that any big extinct thing was a dinosaur,” Smith says.

Play the Dinosaur Game online — the Google Chrome T-Rex dino that runs when there's no internet. Press Space to jump and the down arrow (↓) to duck. Unblocked, no download.

Dec 23, 2025 · Newly discovered species filled gaps in dinosaur evolution and shed light on historic migrations, while other studies offered new ways to date remains and made key insights about diets.

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 …

Mar 19, 2024 · Learn about different types of dinosaurs, their history, discoveries, size, diets, contemporaries, and much more.

Dinosaurs and fossils tell the story of life on Earth over millions of years. From towering skeletons like the Nation’s T. Rex to tiny fossilized plants and insects, these ancient remains help us understand …