Fig. 1. Maxillary and dentary teeth of various theropods, showing the relationship between the fore−aft base length and the labiolingual base width. Graph shows that tyrannosaurids tend to have thicker teeth than most theropods other than spinosaurids. However, it also demonstrates that tooth thickness in tyrannosaurids is allometrically controlled. Small (young) tyrannosaurids have teeth that are indistinguishable in thickness from those of most other theropods.