Rofes J, Ordiales A, Iriarte E, Cuenca-Bescós G, Galindo-Pellicena MÁ, Pérez-Romero A, et al. Human activities, biostratigraphy and past environment revealed by small-mammal associations at the chalcolithic levels of el portalón de cueva mayor (Atapuerca, spain). Quaternary. 2021;4(2).