Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed flourishing communities. Alamosaurus was one of the last dinosaurs from ...

A team of scientists has uncovered evidence that a massive asteroid strike created a prominent crater in southern China’s Guangdong province roughly 10,000 years ago, during a period of rapid human ...

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.

State Key Laboratory of High-Performance Ceramics, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 201899 Shanghai, China Center of Materials Science and Optoelectronics Engineering, ...

Alamosaurus was one of the last dinosaurs from southern North American. Paleontologists have recently dated the rock formation from where it was found in New Mexico to around 340,000 years before the ...

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the details of their end have remained a matter of debate since the impact crater ...

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 ...

This illustration provided by researchers in October 2025 depicts an Alamosaurus sanjuanensis in southern North America as an asteroid hits the Earth 66 million years ago, causing mass extinction.

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