Dinosaurs get all the glory. But aetosaurs, a heavily armored cousin of modern crocodiles, ruled the world before dinosaurs did. These tanks of the Triassic came in a variety of shapes and sizes ...

Everyone knows about the mass extinction that ended the Age of Dinosaurs. About 66 million years ago, a seven-mile-wide asteroid slammed into our planet and began a mass extinction that wiped out all ...

Frogs, salamanders, crocodiles, turtles, and snakes slunk and slithered on and off the Triassic coast, lakes, and rivers. Pterosaurs, a group of flying reptiles, took to the air. On firm ground ...

During the Triassic period, crocodile ancestors radiated into a wide array of terrestrial forms, from slender, long-legged animals something like wolves to huge, fearsome predators at the top of ...

Phytosaurs were successful Triassic crocodile-like reptiles. They were outcompeted and eventually driven extinct by the crocodiles, who became very diverse by the Cretaceous. The largest crocodiles ...

The mystery behind the origins of the dinosaurs may have been given a new twist, with a modeling study suggesting they may have evolved in what is today equatorial Africa and South America. This would ...

Earth’s continents are constantly shifting. About 252 to 199 million years ago, all the continents were actually one huge “supercontinent” surrounded by one enormous ocean. Slowly, this ...

Dinosaurs initially were overshadowed by other animals, including large crocodile relatives - both terrestrial and ...

Scientists think they know where the missing pieces to the puzzle of the evolution of dinosaurs could be found.

This is the lineage to which present-day crocodiles and alligators belong. They are a paltry bunch today, about 25 species all told. But back in the Triassic, there were scores of them ...