Molecular Clock Calibrations and Metazoan Divergence Dates

@article{Lee1999MolecularCC,
  title={Molecular Clock Calibrations and Metazoan Divergence Dates},
  author={Michael S. Y. Lee},
  journal={Journal of Molecular Evolution},
  year={1999},
  volume={49},
  pages={385-391}
}
Abstract. It has recently been argued that living metazoans diverged over 800 million years ago, based on evidence from 22 nuclear genes for such a deep divergence between vertebrates and arthropods (Gu 1998). Two ``internal'' calibration points were used. However, only one fossil divergence date (the mammal–bird split) was directly used to calibrate the molecular clock. The second calibration point (the primate–rodent split) was based on molecular estimates that were ultimately also calibrated… 
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FOSSIL CALIBRATIONS AND MOLECULAR DIVERGENCE TIME ESTIMATES IN CENTRARCHID FISHES (TELEOSTEI: CENTRARCHIDAE)
TLDR
The results place the origin of the centrarchid radiation at a time of major faunal turnover as the fossil record indicates that the most diverse lineages of the North American freshwater fish fauna originated at the Eocene‐Oligocene boundary, approximately 34 mya.
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