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

In Switzerland’s Jura Mountains, ancient limestone holds thousands of dinosaur footprints. A gravel route traces their path ...

New research suggests that dinosaur populations were thriving in North America before the asteroid impact 66 million years ...

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

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

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

For decades, many scientists believed dinosaurs were already dwindling in number and variety long before an asteroid strike ...

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

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the ...

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

New dating techniques of a century-old fossil site in New Mexico dispel the theory that dinosaurs were already in decline ...