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Absolute measures of the completeness of the fossil record

Author

Listed:
  • Mike Foote

    (University of Chicago)

  • J. John Sepkoski

    (University of Chicago)

Abstract

Measuring the completeness of the fossil record is essential to understanding evolution over long timescales, particularly when comparing evolutionary patterns among biological groups with different preservational properties. Completeness measures have been presented for various groups based on gaps in the stratigraphic ranges of fossil taxa1,2 and on hypothetical lineages implied by estimated evolutionary trees3,4,5. Here we present and compare quantitative, widely applicable absolute measures of completeness at two taxonomic levels for a broader sample of higher taxa of marine animals than has previously been available. We provide an estimate of the probability of genus preservation per stratigraphic interval6,7, and determine the proportion of living families with some fossil record8,9,10. The two completeness measures use very different data and calculations. The probability of genus preservation depends almost entirely on the Palaeozoic and Mesozoic records, whereas the proportion of living families with a fossil record is influenced largely by Cenozoic data. These measurements are nonetheless highly correlated, with outliers quite explicable, and we find that completeness is rather high for many animal groups.

Suggested Citation

  • Mike Foote & J. John Sepkoski, 1999. "Absolute measures of the completeness of the fossil record," Nature, Nature, vol. 398(6726), pages 415-417, April.
    • Handle: RePEc:nat:nature:v:398:y:1999:i:6726:d:10.1038_18872
    DOI: 10.1038/18872
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    Cited by:

    1. Joseph T. Flannery-Sutherland & Cameron D. Crossan & Corinne E. Myers & Austin J. W. Hendy & Neil H. Landman & James D. Witts, 2024. "Late Cretaceous ammonoids show that drivers of diversification are regionally heterogeneous," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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