The dinosaur was about as big as a Tyrannosaurus rex and had a unique nasal horn and symmetrical teeth that it used to eat ...

To account for the numerous gaps in the fossil record, they treated the parts of the world where fossils have not been ...

The remains of the earliest dinosaurs may lie undiscovered in the Amazon and other equatorial regions of South America and ...

The remains of the earliest dinosaurs may lie undiscovered in the Amazon and other equatorial regions of South America and Africa, suggests a new study.

Currently, the oldest known dinosaur fossils date back about 230 million years and have been found in southern regions, including Brazil, Argentina, and Zimbabwe. Species such as Eoraptor and ...

By assessing the fossil record and the dinosaur family tree, the researchers’ models suggest that the first dinosaurs evolved ...

Scientists have discovered a new Cretaceous-era dinosaur species by examining photos of a fossil lost during an allied air ...

Dinosaurs long dominated Earth's land ecosystems with a multitude of forms including plant-eating giants like Argentinosaurus, meat-eating brutes like Tyrannosaurus and weirdos like Therizinosaurus, ...

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 ...

Many think dinosaurs first emerged on land well south of the equator that now forms part of Argentina and Zimbabwe, but they ...

Research suggests dinosaurs first appeared in the ancient Gondwana supercontinent, including areas that are now the Amazon ...

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