FIGURE 3 in The dentition of Carodnia vieirai (Mammalia: Xenungulata): enamel microstructure and mastication pattern

FIGURE 3. Crystallites and prisms in the enamel of Carodnia vieirai. SEM images. (3.1) Prisms in a tangential section (KOE 4122) with open prism sheaths. The crystallites are not visible. (3.2) Crystallites forming prisms and inter prismatic matrix in a tangential section (KOE 4212a). The rounded prisms have a closed prism sheath. (3.3) Transversal section of UFRJ-DG 315M showing prisms in cross-section with open prism sheaths etched away and appearing as a trench. (3.4) Prisms in HSB show different directions. One set occurs in cross-section the other more tangentially. Detail from the outer layer in a transverse section (KOE 4212e). (3.5) The enamel near the outer enamel surface in a transverse section (KOE 4121d). The prisms continue until the OES. IPM – interprismatic matrix, OES – outer enamel surface, P – prisms, PS – prism sheath.