FIG. 2 in Extending the tooth mesowear method to extinct and extant equids

FIG. 2. — Longitudinal section of the scull of a six year old individual of Equus ferus Boddaert, 1785 (after Butz & Böttger 1946). The tooth alveolae are opened. Note the differences in tilt of the individual cheek tooth positions as indicated by lines. In the upper premolars P2 and P3 the angle between the occlusal surface and the anterior wall of the tooth is open, in the upper P4 and M1 it is about rectangular, and in the upper molars M2 and M3 the occlusal surface forms a close angle with the anterior wall (bold lines). P2 and P3, as well as M2 and M3 are therefore easily to be identified if isolated. P4 and M1 however are to be distinguished with a great degree of uncertainty. The same applies to the lower premolars and molars. Scale bar: 5 cm.