Figure 4. Selachimorpha enameloid. A, P in Chondrichthyan tooth enameloid: past, present, and future

Abstract

Figure 4. Selachimorpha enameloid. A, P. pockrandti, radial furrows near the SCE, transverse section etched 5 s in 10% HCl. B, P. jurensis, lingual ornament made of SCE, transverse section etched 5 s in 10% HCl. C, Sphyrna sp., cutting edge showing bundles of the PBE oriented normal to the axis of the cutting edge, transverse section etched 5 s in 10% HCl. D, Squatina sp., cutting edge showing bundles of the PBE oriented normal to the axis of the cutting edge, transverse section etched 5 s in 10% HCl.Published as part of <i>Enault, Sébastien, Guinot, Guillaume, Koot, Martha B. & Cuny, Gilles, 2015, Chondrichthyan tooth enameloid: past, present, and future, pp. 549-570 in Zoological Journal of the Linnean Society 174 (3)</i> on page 560, DOI: 10.1111/zoj.12244, <a href="http://zenodo.org/record/10106794">http://zenodo.org/record/10106794</a&gt