Arizonasaurus was an archosaur from the Middle Triassic.

Dinosaurs may have buddied up with other species of dinosaur for safety reasons, say scientists after unexpectedly spotting tracks that suggest different kinds may have once walked side by side.

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Paleontologists in Spain have discovered a new dinosaur species from around 150 million years ago that they say is the largest of its kind. It has been named in honor of famed Spanish-Mexican ...

The dinosaur’s bones are being held at the National University of Patagonia San Juan Bosco. There are no plans to put the ...

Scientists have identified not only the bones of a new dinosaur in southern Missouri, but also may have found a dinosaur hotbed. The newly identified duck-billed dinosaur, named Parrosaurus ...

Mary Odana’s studio in Chatsworth is littered with dinosaur parts. A Triceratops head lies in one corner. The skull of a Tyrannosaurus Rex rests against a wall. But it’s the rubbery, orange ...

An international team of scientists says it has found a fossil of a new species of pachycephalosaur, a type of dinosaur known for their dome-shaped skulls. The team, which includes researchers from ...