For years, scientists believed that dinosaurs first emerged in Gondwana—the southern portion of the ancient supercontinent ...

They lived about 30 million years apart and never set foot on the same continent. Yet Giganotosaurus carolinii is always ...

But there is this 10-15 million year gap that separates the common ancestor of silesaurids and dinosaurs from the first true dinosaurs,' says Paul. Largely ignored due to its scrappy nature, the ...

Triceratops was one of the most common dinosaurs at the end of the Cretaceous Period. Its most prominent features are on its head: two long brow horns, a nasal horn, and a bony frill. Its frill had no ...

Once prints form, they could easily degrade and be filled or washed away. The soft ground of ancient shorelines or mudflats are common locations to find fossilised dinosaur tracks. For example, those ...

Modern gecko embryos also have these prototeeth, despite the fact that geckos’ and dinosaurs’ last common ancestors lived more than a quarter billion years ago. Thanks in part to geckos ...

The date corresponds perfectly to the date of the dinosaur extinction. Rare Metal The metal iridium, which is similar to platinum, is very rare on Earth's surface but is more common in asteroids ...

Did dinosaurs lose their dominance suddenly or ... is very rare on Earth's surface but is more common in asteroids and in molten rock deep within the planet. Some scientists think the presence ...