A stunning fossil discovery in the United States is forcing scientists to rethink the timeline of dinosaur evolution across North America. These newly uncovered bones suggest dinosaurs may have ...

He says the answer to when dinosaurs first appeared in North America may lie in a 16-million-year gap, in the lower Chinle Formation and beneath it, which bears no fossils, dinosaurian or otherwise.

Paleontologists are now able to visually map the dinosaurs' migration during the time they ruled Earth. Skip to main content. ... and North America and Asia have strong records of fossils. However ...

North America is currently in the "Goldilocks window" for finding dinosaur fossils from the Late Cretaceous period, a researcher has said. The Cretaceous period is a geological period that lasted ...

Eleven-plus miles is a long hike, but seeing the largest dinosaur trackway in North America in the Comanche National Grassland in remote southeastern Colorado had been a goal for a while. So when ...

Triceratops and other horned dinosaurs once thrived in North America, but paleontologists have long wondered how the group originally made it to the continent.Now, an analysis of a small, crow ...

The newly described species is the oldest known dinosaur from North America, a study reports. An artist’s illustration shows how Ahvaytum bahndooiveche may have appeared in a Laurasian habitat ...

North America's biggest dinosaur has been unearthed. And it looks like it once called New Mexico home. The revelation of the massive titanosaurus was documented in a recent issue of Acta ...