Early <i>Homo erectus</i> lived at high altitudes and produced both Oldowan and Acheulean tools

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paper

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Mar

RitJoa

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Ame

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In Africa, the scarcity of hominin remains found in direct association with stone tools has hindered attempts to link Homo habilis and Homo erectus with particular lithic industries. The infant mandible discovered in level E at Garba IV (Melka Kunture) on the highlands of Ethiopia is critical to this issue because of its direct association with an Oldowan lithic industry. Here, we used synchrotron imaging to examine the internal morphology of the unerupted permanent dentition and confirmed its identification as H. erectus . Additionally, we used revised paleomagnetic ages to show that (i) the mandible in level E is ~2 million years old and represents one of the earliest H. erectus fossils and that (ii) overlying level D, ~1.95 million years old, contains the earliest known Acheulean assemblage.

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