Leontiniidae is an extinct family comprising eighteen genera of notoungulate mammals known from the Middle Eocene (Mustersan) to Late Miocene (Huayquerian) of South America.

Further reading

  • M. V. Deraco, J. E. Powell, and G. Lopez. 2008. Ameghiniana 45(1):83–91
  • McKenna, Malcolm C., and Bell, Susan K. 1997. Classification of Mammals Above the Species Level. Columbia University Press, New York, 631 pp. ISBN 0-231-11013-8
  • B. J. Shockey, J. J. Flynn, D. A. Croft, P. Gans, and A. R. Wyss. 2012. American Museum Novitates 3737:1–64
  • A. R. Wyss, J. J. Flynn, and D. A. Croft. 2018. American Museum Novitates 3903:1–42