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Re: Long Bone Scaling in Neosauropod Dinosaurs



Guy Leahy writes:

So what about those titanosaurs which possessed armor?
 Would they have needed armor if they were immune to
attack by predators by size alone?  Would titanosaur
scaling depart from isometry as a result?

A very recent paper mentioned here on the list suggested that titanosaur armour was only of defensive use during juvenile stages, and that as titanosaurs matured the scutes became less dense (to the point of being useless as armour).


It's a bit like the idea that tyrannosaur forelimbs were relatively larger (and more useful) in juveniles, but their usefullness (and therefore their relative size) decreased as they matured, to the point of them becoming largely irrelevant to the adult animal.

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Dann Pigdon
GIS / Archaeologist              geo cities.com/dannsdinosaurs
Melbourne, Australia             heretichides.soffiles.com
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