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Otoccipital

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In some vertebrates, the otoccipital is a composite bone present in the rear of the skull. It is formed from the fusion of the exoccipital and the opisthotics; it forms the rear of the braincase and partial wall of the otic capsule. The fusion is present in most diapsids.[1]

Skull of Plateosaurus trossingensis in posterior view. Otoccipital is labeled oo.

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