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. 2021 Jul 28;11:15340. doi: 10.1038/s41598-021-94695-3

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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(A) OHF and its Members (late Early Pleistocene-Middle Pleistocene) exposed at Thomas and Sidi Abderrahmane quarries, South-West of Casablanca (drawing D. Lefèvre). Archaeological sites: GDBA: Grotte de Dar Bou Azza; GDG: Grotte des Gazelles; GDO: Grotte des Ours; GH-CCC: Grotte à Hominidés—complex of continental deposits; G Littor.: Grotte des Littorines; GV: Grotte Velozzo; SAR ext.: Sidi Abderrahmane—Extension; SAK: Sidi Al Khadir; SAR M: Sidi Abderrahmane—Unit M; S.T.I.C.: Société de Transformation Industrielle et de Construction Quarry; ThI-L: Thomas Quarry I—Unit L. OSL and ESR ages, and biochronological data. (B) Members 1 to 4 of the OHF at ThI (photo and drawing D. Lefèvre); (C) ThI-L1 during 2007 excavation (photo J.-P. Raynal); (D) map of ThI with extension of unit L and location of the excavation zones (drawing R. Gallotti); E: ThI-L, Zone 1: OH1 Bed 2—Unit L—L1 to L5 deposits. Photo and drawing D. Lefèvre. Figures were generated with Adobe Photoshop CC version 2015-1, 20151114.r301 X64. Copyright 1990 2015 Adobe Systems Incorporated and its licensors. All rights reserved.