pachycephalosaur

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pachycephalosaur

[‚pak·ə′sef·ə·lə‚sȯr]
(paleontology)
A bone-headed dinosaur, composing the family Pachycephalosauridae.
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References in periodicals archive ?
Based on all of the evidence, I think it is likely that pachycephalosaurs butted their heads against 'something'-probably each other.
But, for the thick-headed pachycephalosaurs, there is little doubt in my mind that they were ramming their skulls," he said.
While no other animal has a head built like pachycephalosaur, cranial ornamentation .
Microscopic analyses of fossils from pachycephalosaurs of various ages also counter the notion of head butting.
Goodwin and his colleague Jack Horner of Montana State University in Bozeman found that the distinctive fibers appeared in the skulls of young pachycephalosaurs.
They found that the bony anatomy of some pachycephalosaur domes were better at protecting the brain than in any modern head butter.