Cryodrakon boreas is a genus of extinct pterosaur that inhabited during the Cretaceous period

During the Oligocene

Mercuriceratops reached approximately 6 meters in length and an estimated weight of 2 tons

The nasal region is short

Arizonasaurus babbitti Scale:1:35 Cryodrakon boreas is a genusArizonasaurus babbitti : The sailboat hunter of the Middle Triassic Long before the great dinosaurs dominated the Earth, during the Middle Triassic, approximately 240 million years ago, surprising lineages emerged that would pave the way for the dominant reptiles of the Mesozoic. One of the most enigmatic and striking was Arizonasaurus babbitti , a large predatory archosaur whose silhouette was crowned by a tall dorsal sail, reminiscent of similar