Figure 2. Dasypus novemcinctus. A, B in Dental enamel structure in long-nosed armadillos (Xenarthra: Dasypus) and its evolutionary implications

Figure 2. Dasypus novemcinctus. A, B, general view of a deciduous molariform (A) and a permanent molariform (B), showing detail of a section parallel to the occlusal plane. The dotted line indicates the extent of the vestigial enamel (VE) in A, and the enamel (E) in B. C, D, photomicrographs of the deciduous molariform, taken with the scanning electron microscope, showing the VE without a crystalline structure. E, enamel layer on a permanent tooth. F, G, details of the indicated areas in E. Abbreviations: D, dentine; E, enamel; EDJ, enamel–dentine junction; IPM, interprismatic matrix; P, prisms; VE, vestigial enamel; white arrowheads show incremental lines.