Isotemnidae is a paraphyletic extinct family of notoungulate mammals known from the Early Eocene (Itaboraian) to Middle Miocene (Honda Group, Laventan) of South America.

Further reading

  • Goin, F. J.; Candela, A.M.; Abello, M.A.; Oliveira, E.V. (2009), , Zoological Journal of the Linnean Society, 155 (4): 867–884, doi:
  • M. McKenna. 1956. Survival of primitive Notoungulates and Condylarths into the Miocene of Colombia. American Journal of Science 254:736-743