Figure 3. Dasypus sabanicola. A in Dental enamel structure in long-nosed armadillos (Xenarthra: Dasypus) and its evolutionary implications

Figure 3. Dasypus sabanicola. A, cross-section parallel to the occlusal plane of a deciduous molariform. B, C, photomicrographs of the deciduous molariform, taken with the scanning electron microscope, showing the vestigial enamel (VE) without crystalline structure. D, cross-section parallel to the occlusal plane of a permanent molariform. E, F, photomicrographs of the permanent molariform, taken with the scanning electron microscope, showing detail of the enamel layer. Abbreviations: D, dentine; E, enamel; EDJ, enamel–dentine junction; VE, vestigial enamel; white arrowheads show incremental lines.