Chasmatosaurus alexanderi

Also known as Alexander's Proterosuchid, Karoo Archosaur

These slender archosauriform predators stalked river channels and floodplains during the aftermath of the Permian-Triassic extinction event. Equipped with a distinctive, sharply downturned upper jaw lined with sharp conical teeth, they excelled at seizing slippery fish and small terrestrial vertebrates at the water's edge. Sprawling limbs and a strong, laterally compressed tail provided agile movement through both riparian mud and shallow freshwater currents.