English: oldowan chopper: https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Olduvai_Chopper.JPG/1280px-Olduvai_Chopper.JPG

2011 Archaeomoonwalker cropped

biface: https://commons.wikimedia.org/wiki/File:Rocce_scheggiate_della_cultura_acheulean,_dalle_zone_del_lago_turkana_tra_etiopia_e_kenya,_1,8_milioni_di_anni_fa_02.jpg 2018 Sailko cropped, background removed, new background added by Bioanthropologist1

biface: https://commons.wikimedia.org/wiki/File:Biface_Cintegabelle_MHNT_PRE_2009.0.201.1_V2.jpg 2010 Didier Descouens cropped, background removed, scale text added by Bioanthropologist1

hand axe, two views: https://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Palaeolithic_acheulean_handaxe_%28FindID_709909%29.jpg/1024px-Palaeolithic_acheulean_handaxe_%28FindID_709909%29.jpg 2015 The Portable Antiquities Scheme, Julie Shoemark scale added; cropped, background removed, new background added by Bioanthropologist1

Archaeological site floor, sequence of images: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0248279 Masojć M, Kim JY, Krupa-Kurzynowska J, Sohn YK, Ehlert M, Michalec G, et al. (2021) The oldest Homo erectus buried lithic horizon from the Eastern Saharan Africa. EDAR 7 - an Acheulean assemblage with Kombewa method from the Eastern Desert, Sudan. PLoS ONE 16(3): e0248279. https://doi.org/10.1371/journal.pone.0248279 Image panel included here is from Figure 3 This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Image has been cropped and lines and arrows added by Bioanthropologist1

Inset map of the archaeological site floor, with key is Figure 27. A. from: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0248279 Masojć M, Kim JY, Krupa-Kurzynowska J, Sohn YK, Ehlert M, Michalec G, et al. (2021) The oldest Homo erectus buried lithic horizon from the Eastern Saharan Africa. EDAR 7 - an Acheulean assemblage with Kombewa method from the Eastern Desert, Sudan. PLoS ONE 16(3): e0248279. https://doi.org/10.1371/journal.pone.0248279 This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Image has been cropped and lines and arrows added by Bioanthropologist1