Classification: Reptilia, Saurischia, Megalosauria
Body length: 18 m
Body weight: 21 t
Period: Middle Cretaceous
Location: North Africa
Spinosaurus was a huge meat-eating dinosaur that had a series of spines on its back. It had a large head with sharp, straight, non-serrated teeth in powerful, crocodile-like jaws.It ate dinosaurs and large fish.Spinosaurus' huge sail may have been used for regulating its temperature. The sail may also have been used for mating rituals, attracting mates. It may have been brightly colored, like the fins of some modern-day reptiles.