Istiorachis macarthurae, dated to about 125 million years ago, sat in a museum for years before being rediscovered.

Definitively dating the age of a clutch of fossil dinosaur eggs at a famous site in China may let scientists link eggshell features to environmental shifts at the time.

Using uranium-lead dating, researchers calculated the age of the eggs, rather than the sediments around them, at the Qinglongshan site in China ...

Found in the Lago Colhué Huapi Formation in Patagonia, Argentina, J. casali may have been the apex predator of its Cretaceous ...

Dinosaur bones are found on every continent. Everywhere on earth, dinosaur fossils disappear at the end of the Cretaceous ...

In a discovery that’s reshaping what we know about ancient crocodilians, paleontologists have identified a tiny land-dwelling ...

The first dinosaur eggshell ever found from the Lance Formation in Niobrara County has paleontologists excited. They believe ...

A tiny fossil, Acronichthys maccognoi, rewrites fish evolution in North America and reveals how otophysans conquered freshwater habitats.

Late Cretaceous dinosaurs may have cut back vegetation, creating large floodplains. When the asteroid hit, those floodplains ...

Ever since moviegoers saw the first ‘Jurassic Park,’ millions have wondered if scientists could make a dinosaur in the lab.

Researchers in Alberta uncovered a fossil fish that rewrites the evolutionary history of otophysans, which today dominate freshwater ecosystems. The new species, Acronichthys maccognoi, shows early ...