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Mass extinction probed

Author

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  • Charles R. Marshall

    (Molecular Biology Institute and Institute for Geophysics and Planetary Physics, University of California)

Abstract

The boundary between the Cretaceous and Tertiary periods, some 65 million years ago, is marked by a mass extinction. This is thought to have resulted from the impact of a large meteorite or comet, coupled with longer term climatic changes. But how did this impact cause the extinction? By delving into the sea-urchin fossil record, one group has shown that, for sea urchins at least, extinction was probably driven by a nutrient crisis which affected the adult life stage more severely than the larval stages.

Suggested Citation

  • Charles R. Marshall, 1998. "Mass extinction probed," Nature, Nature, vol. 392(6671), pages 17-19, March.
    • Handle: RePEc:nat:nature:v:392:y:1998:i:6671:d:10.1038_32039
    DOI: 10.1038/32039
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    Cited by:

    1. Sornette, D & Helmstetter, A, 2003. "Endogenous versus exogenous shocks in systems with memory," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 318(3), pages 577-591.
    2. D. Sornette & A. Helmstetter, 2002. "Endogeneous Versus Exogeneous Shocks in Systems with Memory," Papers cond-mat/0206047, arXiv.org.

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