Click on the map to learn about dinosaur fossil sites in North America. Red Deer River, Dinosaur Provincial Park, Alberta Canada Rocks at this site from the late Cretaceous period contain some of ...

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 ...

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 ...

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.

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 ...

ROSEMONT, Ill. - The largest dinosaur attraction in North America is coming to Chicagoland with a unique mix of educational encounters and exhilarating experiences for Prehistoric buffs of all ...

Scientists have traced the evolution of the modern opossum back to the extinction of the dinosaurs and found evidence to support North America as the center of origin for all living marsupials.

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and other horned dinosaurs once thrived in North America, but paleontologists have long wondered how the group originally made it to the continent.Now, an analysis of a small, crow ...