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

Roughly 201 million years ago, drastic changes extinguished many forms of life and led to conditions that allowed the ...

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

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

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

The first dinosaurs may have evolved near the equator, and not in the southwest of the supercontinent Gondwana, as ...

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

The researchers also found evidence that silesaurids, long thought to be cousins of dinosaurs, might actually be ancestors of ...