In the Cretaceous Era, the
Pterosaurs became very large indeed. A pterosaur called Pteranodon had
a wingspan of about 24 feet ( 8 metres) and another called Quetzalcoatlus
had a wingspan of 36 feet (12 metres). This was the largest flying
animal that there has ever been.
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These first appeared in the
Middle Triassic Era. That was about 215 million years ago. Most
fossils from this time are single bones or parts of bones. There is a
very good fossil site in Italy where whole fossils have been found.
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In the Jurassic Era, the early long tailed pterosaurs were common.
In the middle of the Jurassic, a new type of short tailed pterosaur appeared. This type of pterosaur was called a pterodactyl.
