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Re: Tyrannosaurid bite marks on remains of Daspletosaurus

Also - "Tyrannosaur turned to cannibalism, scientists say"

Tyrannosaur had no choice but to turn to cannibalism, having crashed
in the Andes, etc.  :-)

One of the BBC articles had Luis Rey's illustration.


On Thu, Apr 9, 2015 at 11:07 AM, Ben Creisler <bcreisler@gmail.com> wrote:
> Ben Creisler
> bcreisler@gmail.com
> A new open-access paper in PeerJ:
> D.W.E. Hone & D. Tanke (2015)
> Pre- and postmortem tyrannosaurid bite marks on the remains of
> Daspletosaurus (Tyrannosaurinae: Theropoda) from Dinosaur Provincial
> Park, Alberta, Canada.
> PeerJ 3:e885
> doi: https://dx.doi.org/10.7717/peerj.885
> https://peerj.com/articles/885/
> Trace marks on the bones of non-avian dinosaurs may relate to feeding
> by large carnivores or as a result of combat. Here the cranium and
> mandible of a specimen of Daspletosaurus are described that show
> numerous premortem injuries with evidence of healing and these are
> inferred to relate primarily to intraspecific combat. In addition,
> postmortem damage to the mandible is indicative of late stage carcass
> consumption and the taphonomic context suggests that this was
> scavenging. These postmortem bites were delivered by a large bodied
> tyrannosaurid theropod and may have been a second Daspletosaurus, and
> thus this would be an additional record of tyrannosaurid cannibalism.