Arnaiz-Villena, A., Ruiz-del-Valle, V., Juarez, I., Vaquero-Yuste, C., Martín-Villa, J.M. and Lledó, T. 2026. Lineal Upper Paleolithic scripts more ancient than some figures in Altamira Cave (Santander, Spain) are similar to those found in Sahara and Canary Islands . International Journal of Modern Anthropology. 3, 25 (Jan. 2026), 412–438. DOI:https://doi.org/10.4314/ijma.v3i25.5.