Project 3726: S. Hernández Del Pino, M. Fernández, E. Cerdeño, J. C. Fernicola. 2019. Anatomy and systematics of Notohippus toxodontoides Ameghino, 1891 (Mammalia, Notoungulata), from the Miocene of Santa Cruz Province, Argentina. Journal of Vertebrate Paleontology. 39 (1):e1577870.