Project 2215: M. C. Vallejo-Pareja, J. D. Carrillo, J. W. Moreno-Bernal, M. Pardo-Jaramillo, D. F. Rodriguez-Gonzalez, J. Muñoz-Duran. 2015. Hilarcotherium castanedaii, gen. et sp. nov., a new Miocene astrapothere (Mammalia, Astrapotheriidae) from the Upper Magdalena Valley, Colombia. Journal of Vertebrate Paleontology. 35 (2):e903960.