Paleontologists have found that the thin neck vertebrae of the azhdarchid pterosaurs got their strength from an intricate internal structure. An artist’s impression of the azhdarchids pterosaur Alanqa saharica. Image credit: Davide Bonadonna. Pterosaurs — flying reptiles of the Mesozoic era – made their first appearance in the fossil record in the Late Triassic and survived until the end of the Cretaceous approximately 66 million years...
