Wisdom Teeth in Fossil Record

["Steve Brusatte" <dinoland@lycos.com>]

Hey,
I don't have wisdom teeth, and they are not forming, meaning that I only have 
28 teeth.  

Okay, why is this important?  It probably isn't.  But, I was just curious-are 
there any signs of 'widsom teeth' in the fossil record.  I understand that the 
absence of wisdom teeth in humans is not common, yet at the same time not 
uncommon.  Are there any complete fossilized skulls/jaws of any vertebrates 
(especially mammals) that show the lacking of some teeth?  Is there anything 
compatable to human wisdom teeth in the fossil record at all, or is this just a 
human thing?  I doubt this to be the case, as I can't think of the reason why 
only humans (and only a small percentage of humans at that) would have a lack 
of teeth, yet have normal, healthy dentaries.  

How's that for an odd question?

Steve
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Steve Brusatte-DINO LAND PALEONTOLOGY
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