The largest and most diverse group of Triassic aquatic reptiles gave birth to live young, researchers report in this week's Nature. The finding in sauropterygians is the first evidence of viviparity ...

Everyone knows about the mass extinction that ended the Age of Dinosaurs. About 66 million years ago, a seven-mile-wide ...

One of the key areas of recent research focuses on the recovery of marine ecosystems after the Permo-Triassic mass extinction (PTME). A study identified a clade of marine reptiles known as ...

Study suggests dinosaurs originated in the Amazon, but their fossils are missing. They started as small, bipedal creatures in ...

Dinosaurs had sex. Fossil nests and eggs, as well as the ways today’s birds and crocodiles reproduce, leave no doubt on that ...

Dinosaurs long dominated Earth's land ecosystems with a multitude of forms including plant-eating giants like Argentinosaurus ...

The mystery behind the origins of the dinosaurs may have been given a new twist, with a modeling study suggesting they may have evolved in what is today equatorial Africa and South America. This would ...

Ancient fossils found near Dubois have scientists rethinking the lifespan of reptiles — and how to include Native communities ...

Scientists are suggesting that dinosaurs may have originated in regions of the modern-day Sahara desert and Amazon rainforest, areas that were once part of the southern supercontinent Gondwana. Their ...