An unsuspecting family of Pachycephalosaurus is being stalked by a T-Rex dinosaur.
An unsuspecting family of Pachycephalosaurus is being stalked by a T-Rex dinosaur. Better understanding of morph stages for certain dinosaurs has shown that what used to be Dracorex is actually a juvenile Pachycephalosaurus. Four growth stages have been identified and they illustrate the change in head bone from a young juvenile, juvenile, sub-adult to adult. The frills and horns or many ceratopsians undergo these transformations as well.
Size: 5550px × 3122px
Photo credit: © Arthur Dorety/Stocktrek Images / Alamy / Afripics
License: Royalty Free
Model Released: No
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