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 ...

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

A site in the San Juan Basin of northwestern New Mexico is providing a rare glimpse into the last days of the dinosaurs.

The footprints have been determined to be left by Cetiosaurus, which grew up to 16 meters long and lived during the Jurassic ...

Sixty-six million years ago, two genera of long-necked, quadrupedal dinosaurs had an advantage over other sauropods: they ...

A 230-million-year-old fossil found in Argentina shows that the evolution of sauropod dinosaurs’ long necks began earlier ...

The cast of Patagotitan mayorum weighs 2½ tonnes and was transported in two shipping containers. Read more at ...

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

The study offers the most recent data that challenges the long-held belief among paleontologists that dinosaur populations ...

The remarkable discovery at Dewars Farm quarry, near Bicester, includes a record-breaking 220-metre trail of footprints left ...

A new species of dome-headed dinosaur has been discovered in fossils found in Montana, according to researchers.