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Re: Archaeopteryx, Othnielia & pachycephalosaurs

From: "Steve Brusatte"

> So, what were the thick skulls used for?  Some have said flank butting
(i.e., just like head butting, but instead of two heads colliding, one pachy
would smash its head into the flank of another, possibly a rival, but who
can be sure?).

Flank butting might have caused rib injuries IMHO. Is there evidence of such
rib injuries in the pachycephalosaurs skeletons?

Cheers - Aspidel.