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

Dinosaurs appear to have been thriving before a giant asteroid hit the Earth 66 million years ago, paleontologists working in New Mexico said Thursday in the journal Science. Experts have long debated whether the asteroid was the final blow to a dinosaur population already in decline or if it cut short a flourishing reptilian dynasty.

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

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

One thing that northwestern New Mexico is known for is lots of dinosaur fossils. Previously, paleontologists estimated that the fossils in the Birsti Badlands were 70 million years old, but now, a team of scientists from around the world,

Recent fossil discoveries in New Mexico have provided compelling evidence that dinosaurs were thriving just before the asteroid impact that led to their extinction 66 million years ago. These fossils,