Remains of the quetzalcoatlus discovered in the Big Ben National Park in Texas in 1971 revealed that the species was the largest flying animal to have ever lived, and existed during the Late Cretaceous Period, 68 – 65 million years ago. This species was an advanced toothless pterosaurs with an extremely long neck, sharp beak, and a wingspan of up to 12m. Once up in the air, it’s thought that they spent most of their time soaring through the sky.
After the discovery of the first fossils in America, they were also later discovered in Alberta, the Middle East, African and Russia. The feeding habits of the quetzalcoatlus are somewhat unknown as some scientists believe they scavenged dinosaur carcasses, while others believe they skimmed the surface of water for fish.