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 ...

Read about the Jurassic extinction event that wiped out many species at the beginning of this Period and led to the rise of ...

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

A new review of Triassic fossils from Germany reveals rich tetrapod diversity and links to modern biodiversity and climate ...

Threordatoth chasmatos was one of the last survivors of the procolophonids, a group of lizard-like animals that were once widespread during the Triassic. A fossil hotspot in southern England has ...

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

In the Mesozoic Era, there are fossils that represent both extinct groups and modern groups of animals and plants. During 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 ...

It was the German geologist Friedrich August von Alberti who first marked the Triassic out. He discovered in 1834 that rocks throughout Europe of a certain age contained a unique fossil fauna ...

"That's your Permo-Triassic transition zone ... The crisis for marine animals would have started when toxic levels of CO2 entered the shallows. Fish would have grown lethargic and slowly fallen ...