spinosaurus

Classification: Reptiles, saurichsia, megalosauria

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Body length: 18 m

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Body weight: 21 t

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Epoch: Mid-Cretaceous

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Locations: North Africa

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Spinosaurus was a huge carnivore with a row of spikes on its back. It had a big head with sharp, straight teeth in its powerful crocodile-like jaw.

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Spinosaurus used to feed on other dinosaurs and large fish. The huge sail on its back could have been used for temperature control.

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The sail could also have been used for mating rituals to attract a mate. It might have been brightly coloured like the fins of some modern-day reptiles.