1. Bambach, R. K. Phanerozoic biodiversity mass extinctions. Annu. Rev. Earth Planet. Sci. 34, 127–155 (2006)
2. Hallam, A. & Wignall, P. B. Mass Extinctions and their Aftermath (Oxford, Oxford, 1997)
3. Raup, D. M. Large-body impact and extinction in the Phanerozoic. Paleobiology 18, 80–82 (1992)
4. Hallam, A. The case for sea-level change as a dominant causal factor in mass extinction of marine invertebrates. Proc. R. Soc. Lond. B 325, 437–455 (1989)
5. Newell, N. D. Periodicity in invertebrate paleontology. J. Paleontol. 26, 371–385 (1952)