Definition: Pterosaurian, also known as stegosauroid or stegosaurs, is a group of sauropods that lived during the Jurassic period. The earliest members of this family are known from the Late Cretaceous period in North America and Europe. Pterosaurs were birds-like animals with wings and tail feathers for flight. They had long, slender tails that they used to fly. Pterosaurians were also known as stegosauroids because of their distinctive steg
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