The Cretaceous-Tertiary biotic transition

@article{Macleod1997TheCB,
  title={The Cretaceous-Tertiary biotic transition},
  author={N Macleod and Peter Franklin Rawson and Peter L. Forey and Fred T Banner and Marcelle K. BouDagher-Fadel and Paul R. Bown and Jackie A. Burnett and Paul Chambers and Stephen J. Culver and Susan E. Evans and Charlotte H. Jeffery and Michael A. Kaminski and Alan R. Lord and Angela C. Milner and Andrew R C Milner and Noel J. Morris and Erin F. Owen and Brian R. Rosen and A. Barrett Smith and Paul D. Taylor and Elspeth Urquhart and Jeremy R. Young},
  journal={Journal of the Geological Society},
  year={1997},
  volume={154},
  pages={265 - 292}
}
Mass extinctions are recognized through the study of fossil groups across event horizons, and from analyses of long-term trends in taxonomic richness and diversity. Both approaches have inherent flaws, and data that once seemed reliable can be readily superseded by the discovery of new fossils and/or the application of new analytical techniques. Herein the current state of the Cretaceous-Tertiary (K-T) biostratigraphical record is reviewed for most major fossil clades, including: calcareous… 
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