👉 Pleurosaurus is a genus of dinosaur that lived during the Late Cretaceous period, around 68-64 million years ago. It was one of the most famous and well-preserved dinosaurs in the world due to its unique features such as the elongated snout, large eyes, and long neck. The Pleurosauria is a group of extinct sauropods that includes various species including the Tyrannosaurus rex, Pachycephalosaurus, Tr