Extended Data Fig. 1: The Sterkfontein surface excavation and fossil teeth specimens.
From: Elemental signatures of Australopithecus africanus teeth reveal seasonal dietary stress
a, Plan view of the Sterkfontein surface excavation (adapted from ref. 34) showing the association between the type site excavation and Member 4 deposits. b, Photograph of fossil teeth of specimen StS 28. c, Upper first molar (M1) StS 28B. d, Permanent lower first molar (M1) StS 28C, after being sectioned in two with a diamond low-speed high-precision rotary saw. e, Photograph of fossil teeth of specimen StS 51. f, Permanent premolar (P3) StS 51A. g, Permanent canine (LC) StS 51B, after being sectioned in two with a diamond low-speed high-precision rotary saw. The two teeth that are still embedded in the breccia were not sectioned.
