Figure 56: Tunnel-like features (white arrows) within the enamel of CDU-15 (cattle tooth). Could this be evidence of bioerosion in the enamel? The dentine is affected by intense bioerosion, going right up to the dentino-enamel junction whereas the enamel also exhibits extensive cracking. The tunnel-like features appear to emerge from the cracks. In Figure 56 the dark area does indicate cracks/tunnels filled with some opaque material. It is difficult to tell the features apart and further investigation would be needed to establish the nature of these. See also detail at higher magnification in Figure 57. (Image credit: H. Hollund)
Figure 56

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