Description
Although the first pterosaurs had teeth,Pteranodonhad a long, slender, toothless beak. The skull has a long crest that projects upward and backward. The function of the crest is uncertain but we do know that the size and shape of the crest is different in males and females, so it was most likely used as a display structure during courtship.Pteranodonhad a tiny tail, much too short to have steered the animal during flight, so the crest may also have been useful as a rudder.
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