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Enamel evolved in the skin and colonized the teeth much later
Science Daily
Enamel evolved in the skin and colonized the teeth much later
When did the enamel that covers our teeth evolve? And where in the body did this tissue first appear? In a new study, researchers combined data from two very different research fields -- paleontology and genomics -- to arrive at a clear but unexpected answer to this question: enamel originated in the skin and colonized the teeth much later.
http://www.sciencedaily.com/releases/2015/09/150923133459.htm
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