Flying Reptiles

The biggest flying animals that have ever existed patrolled the skies during the age of the dinosaurs. They were the pterosaurs-lightweight flying reptiles that were related to the dinosaurs. The smallest were the size of sparrows, but the largest were the size of light planes. They had hollow bones like birds, and long, typically toothed beaks. Their wings were membranes of elastic skin, rather like those of a bat, but unlike a bat's wings each was supported by a single, elongated fourth finger bone, and hundreds of tough, reinforcing fibers.

Four long bones of the fourth finger supported the stretchy skin of the pterosaur's outer wing

The pterosaurs that lived in the Cretaceous Period had short tails and long wrist bones The jaws of Pterodaustro were fringed with bristlelike teeth, which it probably used to strain plankton from seawater.

Four long bones of the fourth finger supported the stretchy skin of the pterosaur's outer wing d PTERANODON

One of the biggest pterosaurs, Pteranodon ingens had an elongated crest and a long, toothless beak that made its head longer than its body. It had a beak pouch like that of a pelican, and probably fed on fish.

The pterosaurs that lived in the Cretaceous Period had short tails and long wrist bones The jaws of Pterodaustro were fringed with bristlelike teeth, which it probably used to strain plankton from seawater.

Unusually long toes -

of this Late Cretaceous pterosaur were likely to have been webbed

A grounded pterosaur may have held its elbows up, as here, or it could have walked with straighter arms

A grounded pterosaur may have held its elbows up, as here, or it could have walked with straighter arms

d PTERANODON

One of the biggest pterosaurs, Pteranodon ingens had an elongated crest and a long, toothless beak that made its head longer than its body. It had a beak pouch like that of a pelican, and probably fed on fish.

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