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Re: T-Rex teeth

MARTIN@srv0.ems.edinburgh.ac.uk writes:

> How were a T-rex' teeth arranged?  Was it like a shark, which has a row of 
> front teeth which are easily ripped out when it bites, but has 2 or 3 rows 
> of nascent teeth which quickly grow to replace them?  Or once gone, were 
> they gone forever?

T. rex had a single row of erupted teeth, unlike a shark's multiple
rows.  But, like a shark, T. rex had nascent teeth growing in to
replace those that were being used, damaged, and lost.  This is why
excavated jawbones show teeth of many different sizes.


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