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Inside-out turned upside-down

Sophisticated microscopy analysis of conodont elements suggests that these mysterious fossil structures are not, as has been previously suggested, evolutionary precursors to vertebrate teeth. See Letter p.546

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Figure 1: False teeth.


  1. *This article and the paper under discussion1 were published online on 16 October 2013.


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Correspondence to Philippe Janvier.

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Janvier, P. Inside-out turned upside-down. Nature 502, 457–458 (2013).

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