A newly discovered Triassic reptile from the UK looked more like a racing greyhound than a crocodile, built for speed on land ...

It was relatively small compared to the giants that would follow it later in Earth’s history. With a hip height of approximately 0.3 meters (about a foot) and a length of perhaps a meter (roughly ...

Learn how fossils from Arizona’s Petrified Forest National Park revealed that a Late Triassic crocodile relative may have started life on four legs before walking on two as an adult.

A newly described fossil species from China is offering a rare glimpse into life just after the largest extinction in Earth’s history. Preserved with unusual detail, the fossils reveal powerful jaws ...

Long before mammals dominated the land and even before the most famous dinosaurs appeared, Earth was home to a wide variety ...

News Brief: “Jurassic Park” may be all the rage this summer, but a research team led by the University of Washington’s Christian Sidor is kicking it up a notch with a batch of 13 studies focusing on ...

Christian Sidor, Burke Museum curator of vertebrate paleontology and a biology professor at the University of Washington, recounts the discovery of Triassic fossils. (GeekWire Photo / Alan Boyle) More ...

As the great 20th century paleontologist William Diller Matthew once wrote, "The story of life on Earth is a splendid drama, as interesting as we watch its action and study the interplay of causes and ...