Figure 4
From: Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France
Matheronodon tooth histology. (a) Section plane in labiolingually compressed maxillary tooth MMS/VBN-93-34. (b) Incident light overview of a coronal section as indicated in (a,c) Transmitted light (plane polarized) microscopic view of boxed area in (b) showing enamel thickness variation on the ridges and grooves on the labial surface. (d,e) Transmitted light (plane polarized) microscopic views of boxed areas in (b) with details of the incremental lines in the dentine; Von Ebner lines are indicated by white arrows. (f,g) Transmitted light (plane polarized and cross polarized with lambda filter) microscopic view of boxed area in c, showing the enamel-dentine junction and wavy enamel Schmelzmuster. (h) Detail of the worn crown of MMS/VBN-09-149a (cf. Fig. 3a) showing an occlusal surface with a serrated (black arrows) slicing edge.
