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