Figure 1

Data collected for the morphometric and mechanical analyses the left mandible as an example. A: Morphometric data based on 15 landmarks and 45 semi landmarks sampled over 7 curves. The shaded regions indicate the 5 hypothesized developmental and functional modules [13, 25]. B: The two inlever lengths (based on the temporal and masseter muscle insertions) and the two outlever lengths (based on bite points at the incisors and molars). These are used in various combinations to measure four distinct mechanical advantages (Temporal-Incisor, Temporal-Molar, Masseter-Incisor, Masseter-Molar). All scale bars = 3 mm.