Movie S1.

Small-spotted catshark, hatchling (103 mm) whole XCT scan rotation, showing the skin denticles covering the entire body.

Sox2+ progenitors in sharks link taste development with the evolution of regenerative teeth from denticles

Kyle J. Martin, Liam J. Rasch, Rory L. Cooper, Brian D. Metscher, Zerina Johanson, and Gareth J. Fraser

PNAS. 2016. 113:14769-14774 DOI: 10.1073/pnas.1612354113