Background and mass extinctions: the alternation of macroevolutionary regimes.

@article{Jablonski1986BackgroundAM,
  title={Background and mass extinctions: the alternation of macroevolutionary regimes.},
  author={David Jablonski},
  journal={Science},
  year={1986},
  volume={231 4734},
  pages={
          129-33
        }
}
Comparison of evolutionary patterns among Late Cretaceous marine bivalves and gastropods during times of normal, background levels of extinction and during the end-Cretaceous mass extinction indicates that mass extinctions are neither an intensification of background patterns nor an entirely random culling of the biota. During background times, traits such as planktotrophic larval development, broad geographic range of constituent species, and high species richness enhanced survivorship of… CONTINUE READING
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