1. Kielan-Jaworowska, Z. et al. Mammals from the Age of Dinosaurs—Origins, Evolution, and Structure (Columbia Univ. Press, New York, 2004)
2. Kemp, T. S. The Origin And Evolution of Mammals (Oxford Univ. Press, Oxford, 2005)
3. Lillegraven, J. A., Kielan-Jaworowska, Z. & Clemens, W. A. (eds) Mesozoic Mammals: The First Two-thirds of Mammalian History (Univ. Calif. Press, Berkeley, 1979)
4. McKenna, M. C. & Bell, S. K. Classification of Mammals Above the Species Level (Columbia Univ. Press, New York, 1997)
5. Wang, C. S. & Dodson, P. Estimating the diversity of dinosaurs. Proc. Natl Acad. Sci. USA 103, 13601–13605 (2006)