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File:Pachycephalosaurus scale.png
来自维基百科,自由的百科全书
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File:Pachycephalosaurus scale.png
Description
Pachycephalosaurus
scale
.
png
Size comparison of
Pachycephalosaurus
wyomingensis and a human. Date 3 August 2010 Source Own work Author Matt
File:Pachycephalosaurus ontogeny.png
Description
Pachycephalosaurus
ontogeny.
png
English: Cranial ontogenetic sequence of
Pachycephalosaurus
wyomingensis with morphological landmarks highlighted
File:Stygimoloch skull.png
(2009) Extreme Cranial Ontogeny in the Upper Cretaceous Dinosaur
Pachycephalosaurus
. PLoS ONE 4(10): e7626. doi:10.1371/journal.pone.0007626.g001 Author