Sixty-six million years ago, life on Earth was paid a visit by a very unwelcome guest: the Chicxulub impactor, an asteroid ...

One thing that northwestern New Mexico is known for is lots of dinosaur fossils. Previously, paleontologists estimated that ...

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

Researchers now have a new idea of what a certain type of duck-billed dinosaur looked like, thanks to experts from the ...

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

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

In a new paper in Science, experts from the University of Chicago describe steps that took place some 66 million years ago to ...

Scientists have uncovered fleshed-out imprints of a pair of hoofed dinosaurs in Wyoming. Hardened clay formed around the two ...

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

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

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

Fossil evidence from New Mexico shows dinosaurs were still strong, diverse, and thriving before their sudden extinction 66 ...