Quetzalcoatlus was a Pterosaur with a wingspan of 12 m (40 feet) and a weight of only about 50 kg (110 pounds), that lived during the late Cretaceous period.
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... river in the world by volume, the Parana[?] with its impressive Iguaçu[?] falls, the Rio Negro, São Francisco[?], Xingu, Madeira and the Tapajós[?] rivers.
Situated ...