Felstead, N. J., Gonzalez, S., Huddart, D., Noble, S. R., Hoffmann, D. L., Metcalfe, S. E., …Jimenez-Lopez, J. C. (2014). Holocene-aged human footprints from the Cuatrociénegas Basin, NE Mexico. Journal of Archaeological Science, 42, 250-259. https://doi.org/10.1016/j.jas.2013.11.010