The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is ...

The Triassic Period was a time of great change. Bookended by extinctions, this era saw huge shifts in the diversity and dominance of life on Earth, ushering in the appearance of many well-known groups ...

A new study reveals that Earth's biomes changed dramatically in the wake of mass volcanic eruptions 252 million years ago.

Paleontologists found a group of four-legged Triassic creatures preserved in the same bone bed—but they don’t know what ...

Learn about the time period that took place 251 to 199 million years ago. 3 min read The start of the Triassic period (and the Mesozoic era) was a desolate time in Earth's history. Something—a ...

The Triassic period, spanning 252 to 201 million years ago, was crucial for the evolution of terrestrial tetrapods, including early dinosaurs, mammalian ancestors, and crocodile relatives.

Dozens of amphibians perished together on an ancient floodplain around 230 million years ago, according to a study published ...

The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is providing scientists important clues about these creatures' lives.

The Triassic period stands out in Earth’s history as the time when dinosaurs first evolved. It was followed by the Jurassic and Cretaceous periods – at the end of the latter, the dinosaurs ...

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 ...