concept

Quetzalcoatlus

A giant Cretaceous pterosaur with a 10-11 metre wingspan - the largest flying animal Earth is known to have produced. Mass estimates vary wildly, from featherweight models of ~70 kg to realistic biomechanical figures of ~200-250 kg. Quetzalcoatlus did not take off like a bird; it used a four-limbed vault, launching off its own powerful wing muscles. It marks the upper limit of active powered flight under Earth conditions - and is the yardstick against which we ask how an even larger ikran could fly on Pandora.