Dinosaurs belong to the reptilian group known as diapsids, which also includes modern birds and reptiles like lizards. Mammals, on the other hand, have their roots in an entirely different branch ...

Despite Earth's most devastating mass extinction wiping out over 80% of marine life and half of land species, a group of ...

Modern birds share many traits with dinosaurs, including hollow bones and wishbones. Early birds were also better able to survive the cold conditions after the asteroid strike than many reptiles.

Both birds and reptiles are descended from the group Reptilia, which are diapsids, or animals with two openings on each side of the skull. So from a phylogenetic standpoint, birds are reptiles.

The forerunners of dinosaurs and crocodiles in the Triassic period were able to migrate across areas of the ancient world ...

That the place of honor should be given to this skeleton of an amphibious dinosaur of the age of reptiles is proper, for it is the first of its kind to be mounted complete. The Museum's ...

Discover the migration routes of ancient reptiles and how they thrived in a nearly lifeless environment after the mass ...

Moreover, the eyeballs of many animals, including fish, some extinct mammals, and reptiles (nonbird dinosaurs and birds among them), have bony or cartilaginous rings embedded within the fibrous ...

Analysis of feathers trapped in amber sheds new light on evolutionary path that led to early birds’ ability to fly.

so this is right at the very end of the age of dinosaurs,” Martz said. “At that time, Antarctica was underwater, so we have a lot of fish, ammonoids, big marine reptiles.” One of those ...

Studying bromalites helped paleontologists piece together how the reptiles came to rule a part of the prehistoric world. Coprolites of herbivorous dinosaurs that were found to contain numerous ...