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Spinosaurus was a dinosaur that walked on two legs with three toed feet. They had two arms, each presumably with four fingers. Spinosaurus had a long, narrow head with non-serrated, interlocking teeth that were perfect for catching fish. To picture its head, imagine the head of a crocodile with a small crest over each eye. Spinosaurus was 49 feet long. The defining feature, however, was its many long, narrow spines that extended vertically from its back, and these spines were covered in skin, creating a large, semi-circular "sail" on its back. Some suggest, however, that rather than supporting a "sail," the spines supported a large hump.

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11y ago
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13y ago

It is bigger than t-rex.

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Q: What is unique feature about spinosaurus?
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