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I have recently attended a introductory University course on the evolution of
Dinosaurs at the University of Alberta. The prof in this course told us that
Paleontologists have relatively recently come up with theories about the
Triceratops skull. The theory is that the extended back ridge of the skull was
actually used for attachment of muscles for the jaw. As well as this muscle
they believe that there was a large muscle behind the ridge to aid in lifting
their massive skulls. This gives the Triceratops a more bull-like appearance.
Is this a common theory?