Tympanoctomys is a genus of rodent in the family Octodontidae. There are two species in Tympanoctomys: Tympanoctomys barrerae and Tympanoctomys kirchnerorum.
Both species are endemic to central western Argentina, where it has a fragmented range. Its natural habitat is desert scrubland, dunes and salt flats, where it eats halophyte plants. It is a solitary, nocturnal rodent that constructs large mounds with complex burrows.
- ^ Lawrence, B. (1941), "A new species of Octomys from Argentina", Proceedings of the New England Zoological Club 18: 43–46.
- ^ Woods, C.A.; Kilpatrick, C.W. (2005). "Infraorder Hystricognathi". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1573. ISBN 978-0-8018-8221-0. OCLC 62265494.
- ^ a b Pablo Teta, Ulyses F. J. Pardiñas, Daniel E. Udrizar Sauthier i Milton H. Gallardo (2014), "A new species of the tetraploid vizcacha rat Tympanoctomys (Caviomorpha, Octodontidae) from central Patagonia, Argentina", Journal of Mammalogy 95 (1): 60–71, doi:10.1644/13-MAMM-A-160