The period of time before the Triassic was called the Permian. This was a time when a wide variety of animals lived, including a group of animals called the synapsids, which would later evolve ...

These strange animals are ... whose lineage stretches back approximately 230 million years to the Triassic period, making it one of the oldest surviving lineages of reptiles.

Roughly 201 million years ago, drastic changes extinguished many forms of life and led to conditions that allowed the ...

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 was a unique episode in Earth’s ... At first, these creatures were much smaller, but they eventually outgrew other animals such as the Lystrosaurus, a dog-sized animal ...

The first pterosaurs had a sail-like tensioning system for flying with potentially cumbersome tail vanes, which they could ...

The largest and most diverse group of Triassic aquatic reptiles gave birth to live young, researchers report in this week's Nature. The finding in sauropterygians is the first evidence of viviparity ...

The associated changes in the climate and vegetation affected how dinosaurs evolved. All continents during the Triassic Period were part of a single land mass called Pangaea. This meant that ...

Carnivorous dinosaurs may seem like the scariest prehistoric animals, but some prehistoric ... split off from each other in the Late Triassic period. They evolved separately after this point.

Researchers are now proposing a surprising location for the birthplace of dinosaurs, based on the locations of the currently oldest-known dinosaur fossils, the evolutionary relationships among these ...

A remarkable reptile-like creature with an unusual jaw that lived more than 200 million years ago has been described as a new species. Evidence of the species, Threordatoth chasmatos, was ...