Dann wrote: >I also think it is important that tyrannosaurs show HEALED bite marks. If a T.rex bit another animal on the head with all of its force, I doubt the wounds would have had a chance to heal.< Do the T. rex's that show teeth marks to the head show damage corresponding to teeth in both the upper and lower jaws of an attacker (as if the attacker took the head or snout in its mouth and bit down), or are the teeth marks isolated (such as might be caused by head butting or some kind of stabbing or thrusting behavior)? Seems like the evidence should provide some insight into such things... PTN ----- Original Message ----- From: Dann Pigdon Sent: Sunday, April 14, 2002 6:29 PM To: dinosaur@usc.edu Subject: Re: Submitting new artwork to the wrath of the DML
"Tracy L. Ford" wrote: > > Ok, but the fossil evidence shows that they did bite each other and almost > every Tyrannosaurus (at least) shows re-healed bite marks on the face, jaws, > top of the head, etc. I'm not sure about the other tyrannosaurids. I know > some do show bite marks on the face. Also, they have lots of broken and > re-healed bones, ribs, limbs, etc.
When crocs thrash their heads sideways at each other, they can do a lot of damage with their protruding teeth. If tyrannosaur teeth hung out to any degree (and I think it is clear they did, although not curved laterally like those of crocs), they may have done superficial damage with a badly-timed headbutt.
I also think it is important that tyrannosaurs show HEALED bite marks. If a T.rex bit another animal on the head with all of its force, I doubt the wounds would have had a chance to heal. :)
> AHHH!!!! Noooo...nooo...I don't want to come across as someone who has a > quick temper. I apologize right here and now...
An apology? Okay... what have you done with the REAL Tracy Ford?
My original comment was intended as tongue-in-cheek (hence the smiley face after it). I'm sure no-one thinks of you as quick-tempered.........?
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Dann Pigdon Australian Dinosaurs: GIS, Archaeologist http://www.geocities.com/dannsdinosaurs Melbourne, Australia http://www.alphalink.com.au/~dannj/ ________________________________________________________________
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