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Extreme Cranial Ontogeny in the Upper Cretaceous Dinosaur Pachycephalosaurus
Horner JR,
Goodwin MB
(2009)
Extreme Cranial Ontogeny in the Upper Cretaceous Dinosaur Pachycephalosaurus.
PLOS ONE 4(10): e7626.
https://doi.org/10.1371/journal.pone.0007626