About 250 million years ago, at the end of the Permian period, something killed some ... Often called mammal-like reptiles—they looked like a cross between a dog and a lizard—the synapsids ...

Discover who these prehistoric reptiles were and how they lived. The Scutosaurus was a reptile that lived in Russia during the Permian period, which is around 300 million years ago. Many ...

This not only marked the end of the Permian period and the start of the Triassic ... Out of the ashes of this extinction, several new groups of reptiles began to evolve in the Triassic.

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 ...

The earliest periods, in the Permian, were cold, while the first period of the Triassic—the Induan—had a disturbed climate which the scientists couldn't identify. This could be caused by ...

Scientists later confirmed these were fossilized tracks of five prehistoric species from the Permian Period. The fossils tell the tale of a world on the brink. During the Permian Period ...

Tropical riparian ecosystems—those found along rivers and wetlands—recovered much faster than expected following the end-Permian mass ... for an extended period of time, 7–10 million years ...

Learn about the time period ... the Permian extinction and were quickly diversifying. The first corals appeared, though other reef-building organisms were already present. Giant reptiles such ...