Reply to Sahle and Gossa: Technology and geochronology at the earliest known Oldowan site at Ledi-Geraru, Ethiopia

Braun, David R.; Aldeias, Vera; Archer, Will; Arrowsmith, J Ramón; Baraki, Niguss; Campisano, Christopher J.; Deino, Alan L.; DiMaggio, Erin N.; Dupont‐Nivet, Guillaume; Engda, Blade; Garello, Dominique; Kerfelew, Zenash; McPherron, Shannon P.; Patterson, David B.; Reeves, Jonathan; Thompson, Jessica C.; Reed, Kaye E.

doi:10.1073/pnas.1911952116

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Although there have been some issues raised regarding the exact chronological and technological interpretations of the study (see Sahle and Gossa 2019 and reply by Braun et al. 2019b), the authors do find a clear differentiation between the Ledi‐Geraru assemblage and the earlier Lomekwian tradition (3.3 million years; Harmand et al. 2015), as well as tools from extant capuchin monkeys, supporting the identification of this assemblage as Oldowan.…”

Section: New Discoveries Aplentymentioning

confidence: 66%

Revolutionary Fossils, Ancient Biomolecules, and Reflections in Ethics and Decolonization: Paleoanthropology in 2019

Schroeder

2020

American Anthropologist

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Over the past few decades, paleoanthropology has undergone a transformative shift away from studies focused solely on traditional assessments of skeletal anatomy. Prior to this shift, a review highlighting a year of research may have primarily consisted of a description of new fossil discoveries; in 2019, however, this review also incorporates novel subject matters such as ancient DNA, paleoproteomics, and studies applying a wide array of new analytical methods and theoretical frameworks to paleoanthropological questions. Through these new advances, the nonlinearity and complexity of hominin evolution has been illuminated, emphasizing the importance of interdisciplinary work in progressing the field. In addition, similar to the broader discipline of biological anthropology, the topic of decolonization has been reflected on and discussed. Further, researchers in paleoanthropology are grappling with important issues related to open access and data sharing. In light of this widening scope, this review centers on a collection of studies that focus on five key themes: (1) new discoveries; (2) data sharing and ethics; (3) human origins research; (4) paleogenomics, and new advancements in paleoproteomics; and (5) introspection on a colonial history. Paleoanthropology is coming of age, and in 2019 especially, published research has been reflective of this. [Evolutionary anthropology; human evolution; year in review; human origins]

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Section: New Discoveries Aplentymentioning

confidence: 66%

Revolutionary Fossils, Ancient Biomolecules, and Reflections in Ethics and Decolonization: Paleoanthropology in 2019

Schroeder

2020

American Anthropologist

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“…They have been part of human culture for over two million years (Braun et al, 2019;Semaw et al, 2003) and have generally contributed to defining human beings (Ambrose et al, 2001;Federico & Brandimonte, 2019). Because stone tools are one of the main sources of information regarding early humans' behaviour, they have been broadly studied focusing on the evolution of the human cognitive system across time (Malafouris, 2020;Muller et al, 2017;Pargeter et al, 2019;Stout et al, 2015;Schick & Toth, 1993;Toth & Shick, 2018;Williams et al 2014;Wynn, 2002).…”

Section: Introductionmentioning

confidence: 99%

The role of vision during Lower Palaeolithic tool-making

et al. 2022

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Stone tools are the result of goal-oriented actions involving cognitive processes.Because visual attention is a requirement in accurate tool-making, visual exploration can provide information about the relationship between perception and technological evolution. The purpose of this study is to analyse visual behaviour while an expert knapper produces different stone tools, using a portable eye tracking device. To understand where gaze was directed moment by moment, different areas of interest were defined. The preliminary results show that the most observed areas were the middle position and region, the knapped surface, the first face of the tool being struck and the next point of percussion. There were differences in visual exploration between choppers and handaxes during knapping. The distal position, upper region, cortex and the first face of the toll being struck were more explored in choppers, while the base, knapped surface and first tool's face knapped were more viewed for handaxes. These areas can be considered to be the most salient features needed to control knapping, hence constituting action affordances for the successful production of stone tools.

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Reply to Sahle and Gossa: Technology and geochronology at the earliest known Oldowan site at Ledi-Geraru, Ethiopia

Cited by 3 publications

References 8 publications

Revolutionary Fossils, Ancient Biomolecules, and Reflections in Ethics and Decolonization: Paleoanthropology in 2019

Revolutionary Fossils, Ancient Biomolecules, and Reflections in Ethics and Decolonization: Paleoanthropology in 2019

The role of vision during Lower Palaeolithic tool-making

Statistical assessment of the temporal and cultural relationship between the Lomekwian and Oldowan

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