Dinosaur skeletons often dominate museum halls, from the towering Tyrannosaurus rex known as Sue in Chicago to Sophie the ...

This period of time was when dinosaurs first evolved. The continents we live on today were part of one land mass that scientists call Pangaea. The climate was hot and dinosaurs flourished after the ...

The discovery may push back the emergence of the reptiles that once ruled the Earth, and clarify how dinosaurs like the Triceratops and Stegosaurus emerged. By Asher Elbein A dog-size reptile slipped ...

Ceratopsians were horned, beaked dinosaurs that once stomped their way all over North America and Asia during the Late Cretaceous period, about 80 million years ago. Their abundance in the fossil ...