New genomic and fossil data illuminate the origin of enamel

@article{Qu2015NewGA,
  title={New genomic and fossil data illuminate the origin of enamel},
  author={Qingming Qu and T. Haitina and M. Zhu and P. Ahlberg},
  journal={Nature},
  year={2015},
  volume={526},
  pages={108-111}
}
Enamel, the hardest vertebrate tissue, covers the teeth of almost all sarcopterygians (lobe-finned bony fishes and tetrapods) as well as the scales and dermal bones of many fossil lobe-fins. Enamel deposition requires an organic matrix containing the unique enamel matrix proteins (EMPs) amelogenin (AMEL), enamelin (ENAM) and ameloblastin (AMBN). Chondrichthyans (cartilaginous fishes) lack both enamel and EMP genes. Many fossil and a few living non-teleost actinopterygians (ray-finned bony… Expand
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TLDR
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TLDR
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