Theropod teeth: Exfoliation damage vs. stomach acid damage

[Phil Bigelow <bigelowp@juno.com>]

I put up a few pics of exfoliation damage to theropod teeth (caused by
modern freeze-thaw cycles while the fossil was exposed to the
atmosphere).

http://www.scn.org/~bh162/acid_tooth.html

Some field paleos confuse exfoliation damage and stomach acid etching
damage caused by the theropod ingesting its own teeth while feeding.  If
anyone has a good pic of stomach acid damage to a theropod tooth, I would
appreciate receiving a copy. 


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