Figure 2. Representative limb bones of Protypotherium (from Sinclair 1909) and schematics of the 11 postcranial measurements used in this study (see Table 2 for descriptions). From left to right: left scapula in lateral view (YPM-PU 15828); left humerus in anterior view (YPM-PU 15828); left ulna in anterior view (YPM-PU 15828); left radius in lateral view (YPM-PU 15828); right femur in anterior view (YPM-PU 15340); right tibia in anterior view (YPM-PU 15340); left fibula in internal view (AMNH 9149); and left third metatarsal in dorsal view (AMNH 9149). Scale bar equals 5 cm.