Figure 3 in Evolution of the zygomasseteric construction in Rodentia, as revealed by a geometric morphometric analysis of the mandible of Graphiurus (Rodentia, Gliridae)

Figure 3. Shape differentiation of the mandible on the first two axes of the PCA on mean species centroid coordinates. Outlines are reconstructed on the first two principal components; light grey outline represents the maximum values of the axes, dark grey outline corresponds to extreme reconstruction. Solid symbols indicate families with hystricomorphous skull: squares, Anomaluridae; rhombi, Ctenodactylidae; circles, Pedetidae; triangles, Dipodidae; stars, Graphiurinae. Open symbols indicate myomorph families: stars, Gliridae (Glirinae/Leithiinae); rhombi, Nesomyidae; circles, Muridae; triangles, Cricetidae. Upper left, mean projection for each family, with the minimum spanning tree.