Extended Data Fig. 2: Comparison of the slope of the infraorbital plate and the lateral nasal margin.

Lateral view of the virtual reconstruction of a) ATE7−1, b) D2282, c) KNM-ER-3733, d) ATD6-69, e) D4500 and f) Sangiran 17. The lateral nasal margin of H. antecessor is curved, whereas this profile is straight in the rest of the specimens (dashed line 1). The infraorbital plate slopes in an anterior-inferior direction except in ATD6-69, where this surface slopes slightly backwards (dashed line 2).