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Re: T-Rex teeth
> 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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