The ribs of a 240 million-year-old fossil hold clues to how the first turtle shell evolved. And its skull shape seems closer to that of lizards and snakes than to an ancestor of dinosaurs and birds.

Turtles are very old, appearing in the fossil record about 210 million years ago. But the shell was already full formed in those fossils. Where the hell did the turtle come from?

Discover how the turtle's shell defence evolved, revealing bizarre turtle anatomy and the unique position of shoulder blades.

The turtle has been in no rush to give up the secret of its shell but new research led by Yale’s Tyler Lyson sheds light on a structure unique in the history of life.

The ribs of a 240-million-year-old fossil holds clues to how the first turtle shell evolved. And its skull shape seems closer to that of lizards and snakes than to an ancestor of dinosaurs and birds.

It's a debate that's left more than a few scientists shell-shocked: Just how did the turtle come to acquire its unique suit of armor?

The fossilized remains of a bizarre-looking reptile are giving scientists new insights into how turtles got their distinctive shells.Some 240 million… ...

KIRKWOOD, Missouri ( WJW) — An unusually shaped turtle is living proof of the impact litter can have on wildlife and the ...

How did the turtle get its shell? You'd be forgiven for thinking that Rudyard Kipling worked this out a century ago. It turns out that it's a tough one for biologists to crack. Many think that the ...

The gradual origin of the turtle shell with two hypothetical ancestors, from an animal with isolated lumps of armour, to one with a complete shell A newly identified fossil could explain one of ...

More important, the underside of the shell revealed important facts about the turtle’s evolutionary history. Contrary to the beliefs of the paleontologists of yore, the ribs and vertebrae of a turtle ...

The ribs of a 240 million-year-old fossil hold clues to how the first turtle shell evolved. And its skull shape seems closer to that of lizards and snakes than to an ancestor of dinosaurs and birds.