Pleurokinetic Mastication Model

Animation I created for part of my Master's thesis. I had each of the 23 disarticulated bones of the skull individually laser surface scanned, and then virtually reassembled the skull and animated it to test/visualize this theory of how different bones in the skull moved while the dinosaur was chewing.

Category:

Science & Technology

Tags:

• dinosaur
• chew
• chewing
• mastication
• science
• model
• animation
• virtual
• hadrosuaroid
• duck-billed
• thesis
• Hopkins

[z3r0xPrefect]

Your presentation is cool, and I'm sure it's hard work to have produced this video, but please do not assume others have not considered the literature or hands on time with the vertebrate skull.

Why does your model omit the palate?

[hallam25]

When this specimen was discovered the bones of the palate were missing. Yes, we could have recreated the palate by referencing other hadrosauroid skulls to model a replacement palate, but for the scope (and time restraints) of this study, that simply was not feasible. I realize that this model is still controversial in some arenas and challenged by theories of simple forward-back motion of the dentary bones etc, but I'd recommend reading work by Weishampel as well. Thanks for your comments.

[hallam25]

Actually, work by Dr. David B. Weishampel, recognized authority and expert on evolutionary biomechanics and hadrosauroid mastication supports this model. Perhaps you should do your research...

[z3r0xPrefect]

It's too bad many of the cranial joints in the skull that are highlighted in the pleurokinetic model don't actually work that way. :P

[hallam25]

Actually, work by Dr. David B. Weishampel, recognized authority and expert on evolutionary biomechanics and hadrosauroid mastication supports this model. Perhaps you should do your research...

[CanadianMuseumNature]

@z3r0xPrefect

Also Dont forget this one by Rybczynski et al. in 2006!

[CanadianMuseumNature]

Dont forget this one by Rybczynski et al. in 2006!



[andyt563]

Was this ever published?

[plasticanatomy]

Lovely animation, great to see. Thanks for sharing

[zhengwenjie]

really cool!!!!!

[z3r0xPrefect]

What bothers me is that the palate would have constrains the motion of the maxilla as you've reconstructed.

I've read Weishampel's work. But that doesn't address the problems brought up by other researchers. Is your thesis published or (alternatively) available online?

[hallam25]

Thanks -- actually in the published thesis, Holliday, Witmer, Rybczynski, Ostom and Heaton are all referenced. This model however was developed to propose an alternate theory for the unique tooth wear patterns, based on work by Weishampel and Fastovsky... and Cuthbertson. :)

[z3r0xPrefect]

Also, Cuthbertson (2006).