The postosuchus lived at the time of the first dinosaurs and looked similar to a crocodile, as you can see from the postosuchus from Schleich Dinosaurs.
The postosuchus was an archosaur and thus a close relative of modern crocodiles. It had strikingly ossified skin and a long, narrow snout. It usually moved on four legs. Sometimes it stood on its hind legs so that it could hold prey with its claws. When the postosuchus from Schleich Dinosaurs opens its powerful, movable jaw the sharp, dagger-like teeth become visible.