The Quetzalcoatlus wasn't a single dinosaur, but a genus containing several species. Quetzalcoatlus Northropi was the largest ...

Their wingspan was nearly as long as a telephone pole. And at least one species, Quetzalcoatlus northropi, stood as tall as a giraffe — and weighed 300 kilograms! That's 15 times the size of the ...

Their world included monsters like Quetzalcoatlus northropi, one of the largest flying animals yet discovered, nearly as tall as a giraffe, with a 35-foot wingspan and a likely penchant for ...