Evidence map›Paper›PMID 41188262›Full record

ArticleNature communications2025

Early Oldowan technology thrived during Pliocene environmental change in the Turkana Basin, Kenya.

David R Braun, Dan V Palcu Rolier, Eldert L Advokaat, Will Archer, Niguss G Baraki, Maryse D Biernat, Ella Beaudoin, Anna K Behrensmeyer, René Bobe, Katherine Elmes and 20 more

Abstract readHistorical Article
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

30 authors.

David R BraunTechnological Primates Research Group, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. David_braun@gwu.edu.ORCID http://orcid.org/0000-0002-7300-2635
Dan V Palcu RolierNational Institute of Marine Geology and Geo-ecology, GeoEcoMar, Bucharest, Romania. dan.palcu@gmail.com.ORCID http://orcid.org/0000-0002-0714-116X
Eldert L AdvokaatDepartment of Earth Sciences, Utrecht University, Utrecht, Netherlands.ORCID http://orcid.org/0000-0001-8239-0310
Will ArcherMax Planck Partner Group, Department of Archaeology and Anthropology, National Museum Bloemfontein, 9301, Bloemfontein, South Africa.
Niguss G BarakiCenter for the Advanced Study of Human Paleobiology, George Washington University, Washington, DC, USA.ORCID http://orcid.org/0000-0001-5454-129X
Maryse D BiernatInstitute of Human Origins, School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, USA.
Ella BeaudoinDepartment of Archaeology, University of Cambridge, Cambridge, UK.
Anna K BehrensmeyerCenter for the Advanced Study of Human Paleobiology, George Washington University, Washington, DC, USA.
René BobeDepartment of Science, Gorongosa National Park, National Park, Sofala, Mozambique.ORCID http://orcid.org/0000-0001-9059-2203
Katherine ElmesDepartment of Archaeology, University of Cape Town, Cape Town, South Africa.
Frances ForrestDepartment of Sociology and Anthropology, Fairfield University, Fairfield, CT, USA.ORCID http://orcid.org/0000-0002-7796-2844
Ashley S HammondInstitut Català de Paleontologia Miquel Crusafont (ICP-CERCA), Universitat Autonoma de Barcelona, 08193, Cerdanyola del Valles, Barcelona, Spain.ORCID http://orcid.org/0000-0001-8444-0553
Luigi JovaneDepartment of Geological Oceanography, Oceanographic Institute, University of São Paulo, São Paulo, Brazil.ORCID http://orcid.org/0000-0003-4348-4714
Rahab N KinyanjuiDepartment of Earth Sciences, National Museums of Kenya, Nairobi, Kenya.ORCID http://orcid.org/0000-0003-2032-8321
Ana P de MartiniDepartment of Geological Oceanography, Oceanographic Institute, University of São Paulo, São Paulo, Brazil.ORCID http://orcid.org/0000-0002-6740-0258
Paul R D MasonDepartment of Earth Sciences, Utrecht University, Utrecht, Netherlands.ORCID http://orcid.org/0000-0001-7569-5917
Amanda McGroskyDepartment of Evolutionary Anthropology, Duke University, Durham, NC, USA.ORCID http://orcid.org/0000-0002-1110-4310
Joanne MungaCenter for the Advanced Study of Human Paleobiology, George Washington University, Washington, DC, USA.
Emmanuel K NdiemaDepartment of Earth Sciences, National Museums of Kenya, Nairobi, Kenya.
David B PattersonDepartment of Biology, University of North Georgia, Dahlonega, GA, USA.
Jonathan S ReevesTechnological Primates Research Group, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.ORCID http://orcid.org/0000-0002-2017-0539
Diana C RomanEarth and Planets Laboratory, Carnegie Institution for Science, Washington, DC, USA.ORCID http://orcid.org/0000-0003-1282-5803
Mark J SierDepartment of Earth Sciences, Utrecht University, Utrecht, Netherlands.ORCID http://orcid.org/0000-0002-4145-0556
Priyeshu SrivastavaDepartment of Geological Oceanography, Oceanographic Institute, University of São Paulo, São Paulo, Brazil.ORCID http://orcid.org/0000-0001-7672-1929
Kristen TuostoCenter for the Advanced Study of Human Paleobiology, George Washington University, Washington, DC, USA.
Kevin T UnoDepartment of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA.ORCID http://orcid.org/0000-0001-6882-0900
Amelia VillaseñorDepartment of Anthropology, The University of Arkansas, Fayetteville, AR, USA.ORCID http://orcid.org/0000-0002-4385-946X
Jonathan G WynnDirectorate for Geosciences, National Science Foundation, Alexandria, VA, USA.
John W K HarrisNational Museums of Kenya, Archaeology Division, Nairobi, Kenya.
Susana CarvalhoDepartment of Science, Gorongosa National Park, National Park, Sofala, Mozambique.ORCID http://orcid.org/0000-0003-4542-3720

Funding

National Science Foundation (NSF) NSF REU 1852441, NSF 1358178, NSF 1624398
6 · The paper itself

Abstract

Approximately 2.75 million years ago, the Turkana Basin in Kenya experienced environmental changes, including increased aridity and environmental variability. Namorotukunan is a newly discovered archaeological site which provides a window into hominin behavioral adaptations. This site lies within the upper Tulu Bor and lower Burgi members of the Koobi Fora Formation (Marsabit District, Kenya), presently a poorly understood time interval due to large-scale erosional events. Moreover, this locale represents the earliest known evidence of Oldowan technology within the Koobi Fora Formation. Oldowan sites, older than 2.6 million years ago, are rare, and these typically represent insights from narrow windows of time. In contrast, Namorotukunan provides evidence of tool-making behaviors spanning hundreds of thousands of years, offering a unique temporal perspective on technological stability. The site comprises three distinct archaeological horizons spanning approximately 300,000 years (2.75 - 2.44 Ma). Our findings suggest continuity in tool-making practices over time, with evidence of systematic selection of rock types. Geological descriptions and chronological data, provide robust age control and contextualize the archaeological finds. We employ multiple paleoenvironmental proxies, to reconstruct past ecological conditions. Our study highlights the interplay between environmental shifts and technological innovations, shedding light on pivotal factors in the trajectory of human evolution.

Indexed as

ArchaeologyHominidaeTechnologyTool Use BehaviorAnimalsFossilsGeologic SedimentsHistory, AncientHumansKenya

Identifiers

PMID41188262
PMCPMC12586688

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.