Arizonasaurus was an archosaur from the Middle Triassic.

When it comes to dinosaur extinction, the working idea is what’s called the bolide impact. This is the hypothesis that a meteorite came to the surface of the Earth, hit the Earth and led to the ...

Rock layers deposited before and after the major dinosaur extinction event 65 million years ago are surprisingly different.

What kid hasn’t dreamed of exploring the world when dinosaurs roamed the earth? Author and illustrator Rachel Ignotofsky put ...

When did these blockhead dinosaurs get their domes? A new fossil is “the specimen we have all been waiting for.” ...

One of the most surprising effects of the cascade of changes was...fruit? One of the most surprising effects of the cascade of changes that played out in the wake of dinosaur extinction may have been ...