Fig. 1: ThI-GH site.

a, Location map of ThI, modified according to ref. ¹³. b, Magnetostratigraphy of members OH3A, OH3B, OH4, GH-CCC and OH5 of ref. ¹³ and this study. The black bars represent normal polarity, and the white bars represent reverse polarity. Further details are provided in Supplementary Fig. 2. Magnetochron ages are from ref. ²². c, Photograph of the outcrop stratigraphy with indication of magnetic polarity from this study and a previous study¹³ and lithologic members. Here we focused on sections A–E, of which only section A is reported here. d, Magnetostratigraphy of sections A–E comprised stratigraphic units OH4 SU6–5 and GH-CCC SU4–3. Context and details for lithostratigraphic units are provided in Extended Data Fig. 2. The red stars with labels represent hominin remains (the larger stars indicate mandibles) (Extended Data Table 1): ThI-GH-UA28-7 (femur, a); ThI-GH-OA23-24 (tooth, b); ThI-GH-SA26-88 (tooth, c); ThI-GH-SA26-90 (tooth, d); ThI-GH-PA24-107 (tooth, e); ThI-GH-10717 (mandible) and ThI-GH-10717/1-5 (vertebrae, f); ThI-GH-10725 and ThI-GH-10725/1 (vertebrae, g); ThI-GH-10726 (vertebra, h); and ThI-GH-10978 (mandible, i). Note that ThI-GH-UA28-7 (a) is located outside the section on the right. Close to the bottom wall of the cavity, its insertion into the stratigraphy is imprecise (SU4/5).