1. Ameghino F. 1889. Contribución al conocimiento de los mamíferos fósiles de la República Argentina. Actas de la Academia Nacional de Ciencias de Córdoba 6: 1–1027.
2. Berggren W. A., Kent D. V., Swisher III C. C. and Aubry M.-P. 1995. A revised Cenozoic Geochronology and chronostratigraphy. [In: Geochronology, time scales and global stratigraphic correlation. W. A. Bergreen, D. V. Kent, M.-P. Aubry and J. Hardenbol, eds]. Society for Sedimentary Geology, Special Publication 54: 129–212.
3. Bonadonna F. P. and Alberdi M. T. 1987. The N/Q boundary at 1.64 Ma? Mediterránea 6: 115–130.
4. Bozinovic F. and Contreras L. C. 1990. Basal rate of metabolism and temperature regulation of two desert herbivorous octodontid rodents:Octomys mimax andTympanoctomys barrerae. Oecologia 84: 567–570.
5. Bremer K. 1988. The limits of amino acid sequence data in angiosperm phylogenetic reconstruction. Evolution 42: 795–803.