A series of fossilized footprints linked to a Triassic-era reptile have been stolen from a Utah national park. The incident is being investigated as an act of vandalism and the theft of “irreplaceable ...

Millions of years before the arrival of the mighty Tyrannosaurus rex, another fearsome dinosaur -- the Gnathovorax -- roamed what is now southern Brazil, ripping apart its prey with sharp teeth.

Explore the aftermath of the End-Permian mass extinction and how life triumphed in the Triassic period with new fossil discoveries. You've probably heard about The Great Dying, more formally known as ...

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 ...

Arizona rock core to yield coherent picture of turbulent period. Tourists flock to Petrified Forest National Park in Arizona to marvel at great glittering logs of petrified wood. But geologists hope ...

Putting together a giant jigsaw puzzle can be a lot of fun! Especially when the pieces are millions of years old. Jonah Choinière of the Evolutionary Studies Institute at the University of the ...

Some ancient tracks in Capitol Reef National Park were “impressed into a muddy matrix and later filled in with a fine sand,” the National Park Service says. It's not clear if these were the stolen ...