When did these blockhead dinosaurs get their domes? A new fossil is “the specimen we have all been waiting for.” In this artist's reconstruction, two pachycephalosaurs from the new species Zavacephale ...

A ridge of rocks in New Mexico holds a snapshot of a dinosaur heyday. Fossils of crested hadrosaurs, long-necked sauropods and a variety of plants all point to a flourishing ecosystem. “Without this ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

LAS CRUCES — A geology professor who joined the New Mexico State University faculty this year is the lead author of a new paper addressing a long-standing question about the extinction of dinosaurs.

New fossil evidence from New Mexico is rewriting the final chapter of the non-avian dinosaurs. Far from dying out slowly, these ancient giants were living in robust ecosystems just before their sudden ...

Sixty six million years ago, a colossal asteroid crashed into what is now the Yucatán Peninsula in Mexico. It triggered the extinction of the dinosaurs and wiped out most life on Earth. But what if ...