Sarcosuchus (Cretaceous)
Sarcosuchus is a giant crocodylomorph. Although its name means "flesh crocodile," it had little in common with crocodiles. This reptile family died out and had no more direct descendants.
Sarcosuchus inhabited Africa and Brazil warm freshwater basins during the Early Cretaceous. It fed on fish and small dinosaurs when it approached the water edge. It was a Perfect diver although it was slow on shore. It did not pursue large prey because it was unable to do a "death roll", as modern-day crocodiles do. However, the Sarcosuchus had a long snout that allowed it to capture large crossopterygians. Sarcosuchus has a hook-like outgrowth at the upper jaw. It sneaked to any reptile at the water edge, snapped it and dragged under water.