Fig. 1

Map of eastern Sudan showing the locations of sites Upper Atbara 50 (UA50), Upper Atbara 53 (UA53), and Mahal Teglinos (K1). The map was created by Stefano Costanzo using QGIS version 3.44.5 (QGIS Development Team, 2025; https://www.qgis.org) and public domain satellite imagery accessed through the QuickMapServices plugin (NextGIS, 2025; https://nextgis.com).