A breed of dinosaur that could stretch its bones into grotesque shapes. Like putty. Hense the name PUTasaurous. It died out in the Stone Ages when there began to be huge demand for its sweet meat in Major Stone Age restaraunts, such as popular tavern The Carefree Dinosaur, hip teenager hangout McStonalds, classy and highly respected restaraunt ""Carnivour" ........OK fine, I'll stop.