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Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Antonio Rodríguez-Hidalgo conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft.

Juan Ignacio Morales conceived and designed the experiments, prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft, directed the field work.

Artur Cebriá approved the final draft, directed the field work.

Lloyd A. Courtenay analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft.

Juan L. Fernández-Marchena prepared figures and/or tables, approved the final draft.

Gala García García-Argudo conceived and designed the experiments, approved the final draft.

Juan Marín contributed reagents/materials/analysis tools, approved the final draft.

Palmira Saladié contributed reagents/materials/analysis tools, approved the final draft.

Maria Soto approved the final draft.

José-Miguel Tejero conceived and designed the experiments, authored or reviewed drafts of the paper, approved the final draft.

Josep-María Fullola approved the final draft, iP of the project.

Data Deposition

The following information was supplied regarding data availability:

We plan to submit a high-resolution 3D digital model of the object analysed along with the paper in the final version. This model can be used to reproduce all the analyses presented here

Funding

This research was financed by the Spanish Ministry of Science, Innovation and Universities (HAR2017-86509-P) (MICINN-FEDER PGC2018-093925-B-C32) and Generalitat de Catalunya through 2017 SGR 1040 supported within the framework of CERCA Programme/Generalitat de Catalunya, and 2017 SGR 00011 and CLT009/18/00024 projects (the last two directed by J.-M.F. as the principal investigator). The research work of A.R.-H. was financed by the Spanish Ministry of Science, Innovation and Universities (FJCI-2015-24144, Subprograma Juan de la Cierva) and CGL2015-65387-C3-1-P (MINECO/FEDER). The research of J.I.M. was financed by the Juan de la Cierva-Incorporación (IJCI-2017-31445) MICINN fellowship. The research of G.G.-A. was financed by the Universitat de Barcelona APIF 2018 fellowship. The research work of J.L.F.-M. was financed by FPI program of the Spanish Ministry of Economy and Competitiveness MINECO/FSE (BES-2015-074931). The research work of J.-M.T. was funded by CNRS UMR 7041 ArScAn équipe Ethnologie préhistorique (P. Bodu). J.M. is the beneficiary of an Erasmus Mundus Doctorate scholarship for an International Doctorate in Quaternary and Prehistory (IDQP). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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