Table 2 Linear distances determined in the toad skulls. In total, we determined 24 linear distances representing individual dimensions of the bones (or the orbit) in the toads’ skulls. Distances are spread through the skull in three views (dorsal, ventral and lateral; see Fig. 1). We positioned landmarks in both sides of the skull and averaged the distances from both sides

From: Landmark precision and reliability and accuracy of linear distances estimated by using 3D computed micro-tomography and the open-source TINA Manual Landmarking Tool software