News Release 05-085
Geologists Find First Clue to T. rex Gender in Bone Tissue
Lucky break reveals it's a girl
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Two Tyrannosaurus rex adults are alert and ready to hunt. A pterodactyloid pterosaur is overhead. The scene takes place on the margin of a floodplain in the future area of western Montana, during the Hell Creek formational time of the late Cretaceous Period.
Credit: "Awakening of Hunger" (Tyrannosaurus) @ 1985 Mark Hallett. All Rights Reserved.
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Tissue within T. rex bone led to a determination of the dinosaur's gender.
Credit: North Carolina State University
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