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A note on the estimation of species duration distributions

Published online by Cambridge University Press:  08 February 2016

John H. Gillespie  and
Robert E. Ricklefs
John H. Gillespie
Affiliation:
Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104
Robert E. Ricklefs
Affiliation:
Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104
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Abstract

The mathematical relationship between species survivorship and duration curves is derived using standard demographic arguments. The result, when applied to the late Cenozoic mammals, suggests that there was an inhomogeneity in the mammalian radiation just before the Wurm, or that the mammalian speciation process has not yet attained the stable-age distribution.

Type
Research Article
Information
Paleobiology , Volume 5 , Issue 1 , Winter 1979 , pp. 60 - 62
Copyright
Copyright © The Paleontological Society 

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References

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