Angistorhinus grandis Mehl, 1913 - reconstruction of a fossil reptile from the Triassic of Wyoming, USA. (public signage, Field Museum of Natural History, Chicago, Illinois, USA)

Prima facie, this looks like it is a crocodilian - but it's not! This is a phytosaur. Phytosaurs and crocodilians are unrelated reptiles that have similar body plans - an excellent example of convergent evolution. Phytosaurs are an extinct group of reptiles known only from Upper Triassic rocks, possibly extending into the Lower Jurassic.

From museum signage: With their long snouts and sharp teeth, phytosaurs looked, and perhaps behaved, like today's crocodiles. But scientists know that crocodiles did not evolve from these Triassic reptiles, because of some key differences. For example, a phytosaur's nostrils are between its eyes. (See the bumps on these skulls?) A crocodile's nostrils are at the tip of its snout.

Classification: Animalia, Chordata, Vertebrata, Reptilia, Phytosauria, Phytosauridae or Parasuchidae

See info. at: en.wikipedia.org/wiki/Phytosaur and