The impact of lithification on the diversity, size distribution, and recovery dynamics of marine invertebrate assemblages

@article{Sessa2009TheIO,
  title={The impact of lithification on the diversity, size distribution, and recovery dynamics of marine invertebrate assemblages},
  author={Jocelyn Anne Sessa and Mark E. Patzkowsky and Timothy J. Bralower},
  journal={Geology},
  year={2009},
  volume={37},
  pages={115-118}
}
Lithified marine sediments are not equitably distributed through time, raising the possibility that lithification masks biological signals when data from unlithified and lithified sediments are compared or combined. Using mollusk-dominated assemblages from the early Cenozoic of the Gulf Coastal Plain, we find that lithification conceals small taxa, decreases taxonomic resolution, and exacerbates the undersampling of rare taxa. Lithified assemblages appear less diverse and have less even… 

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