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Cantalapiedra, Juan L.; Sanisdro, Oscar L.; Cantero, Enrique; Prado, Jose Luis; Alberdi, Mª Teresa Luis (4 August 2023). "Evolutionary Radiation of Equids". In Prins, Herbert H.; Gordon, Ian J. (eds.). The Equids, A Suite of Splendid Species. Fascinating Life Sciences. Springer. pp. 27–45. doi:10.1007/978-3-031-27144-1_2. ISBN978-3-031-27143-4 – via www.springer.com.