Only the bony spikes remained on other fossils from armored dinosaurs. This is because keratin — the dead cells that make up structures like hair and fingernails — doesn't fossilize well.

were a group of herbivorous dinosaurs with diverse lifestyles, ranging from armored ankylosaurs to more modern ceratopsians and hadrosaurs. High-resolution CT scans allowed the team to make ...

Researchers have described a new species of armored reptile that lived near the time of the first appearance of dinosaurs. With bony plates on its backbone, this archosaur fossil reveals that ...

When you picture a dinosaur, what does it look like? Maybe you think of four-legged herbivores like Apatosaurus or Triceratops. Maybe you imagine large armored dinosaurs like Ankylosaurus or ...

Dino Armor Secrets This nodosaur’s structure hints that other armored dinosaurs, like horned species, may also have had similarly thick keratin, giving new insight into prehistoric defenses.

Here's how scientists know When you picture a dinosaur, what does it look like? Maybe you think of four-legged herbivores like Apatosaurus or Triceratops. Maybe you imagine large armored dinosaurs ...

Molecular biologist John J. Kopchick is now the namesake of Yuxisaurus kopchicki, an armored dinosaur that is a distant cousin of the Stegosaurus. It lived between 174 million and 192 million ...

Early dinosaurs such as the carnivorous dinosaur in background were small and rare, whereas other reptiles such as the long-snouted phytosaurs and armored aetosaurs were quite common. Advanced ...