A typical workflow in virtual morphology for geometric morphometric research in digital collections. a) original cranium; b) virtual 3D model of a cranium; c) virtual cranium plus 3D landmarks (3D point-, curve-, and surface measurements with Cartesian coordinates); d) superimposed 3D landmarks of a large sample of virtual 3D models of crania; e) 3D landmarks of the sample mean shape; f) 3D-print of a virtual cranium morphed to the mean shape.