Extended Data Fig. 7: Maxillary arcade shape.
From: A 3.8-million-year-old hominin cranium from Woranso-Mille, Ethiopia
Maxillae in occlusal view of select A. afarensis and A. anamensis specimens and MRD (original, as preserved). The canine and postcanine teeth form a nearly straight line in A. anamensis and MRD. By contrast, the canine tends to be slightly medially offset relative to the postcanine row in many A. afarensis specimens. The position of the canine is indicated by the black asterisk. Scale bar, 1 cm.
