Video 1

Movie S1. Three-dimensional model for the Gorham’s engraving generated and mapped using Agisoft Photoscan Standard Edition (44 pictures, 220,000 points, 10,000,000 faces). The sections and measurements were processed with TIVMI (http://projets.pacea.u-bordeaux.fr/TIVMI/). The 3D video was created using Autodesk 3ds Max and Adobe Premiere Pro CC.

A rock engraving made by Neanderthals in Gibraltar

Joaquín Rodríguez-Vidal, Francesco d’Errico, Francisco Giles Pacheco, Ruth Blasco, Jordi Rosell, Richard P. Jennings, Alain Queffelec, Geraldine Finlayson, Darren A. Fa, José María Gutiérrez López, José S. Carrión, Juan José Negro, Stewart Finlayson, Luís M. Cáceres, Marco A. Bernal, Santiago Fernández Jiménez, and Clive Finlayson

PNAS. 2014. 111:13301-13306 DOI: 10.1073/pnas.1411529111