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(A) comparison of the pontine flexure (indicated by the arrow) in Moschops and its absence in the pachycephalosaurid Stegoceras (redrawn after Bourke et al., 2014). (B) the skull of Moschops and Stegoceras (redrawn after Bourke et al., 2014) aligned according to the plan of their lateral semicircular canals.
