Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, ...

A fresh analysis of a site in New Mexico provides a glimpse into the final days of the dinosaurs, showing their diversity before going extinct.

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed ...

A trove of specimens from New Mexico may help settle a long-running argument about the diversity of dinosaurs before their ...

A fossil site in New Mexico with numerous dinosaurs, including the gargantuan Alamosaurus, dates to shortly before the ...

Sixty-six million years ago, two genera of long-necked, quadrupedal dinosaurs had an advantage over other sauropods: they ...

Of all the mysteries surrounding dinosaurs, none has sparked more debate than how their era ended—was it a gradual decline or ...

New research suggests dinosaur populations were still thriving in North America before the asteroid strike, but it’s only one ...

A new species of dome-headed dinosaur has been discovered in fossils found in Montana, according to researchers.

New dating has revealed that New Mexico's last dinosaurs were healthy, diverse and thriving at the end of the Cretaceous ...

Imaging technology has revolutionized paleontology, allowing scientists to study fossils that are buried deep in the rock or ...