Sudden and Gradual Molluscan Extinctions in the Latest Cretaceous of Western European Tethys

@article{Marshall1996SuddenAG,
  title={Sudden and Gradual Molluscan Extinctions in the Latest Cretaceous of Western European Tethys},
  author={Charles R. Marshall and Peter D. Ward},
  journal={Science},
  year={1996},
  volume={274},
  pages={1360 - 1363}
}
  • C. Marshall, P. Ward
  • Published 22 November 1996
  • Environmental Science, Geography, Geology
  • Science
Incompleteness of the fossil record has confounded attempts to establish the role of the end-Cretaceous bolide impact in the Late Cretaceous mass extinctions. Statistical analysis of latest Cretaceous outer-shelf macrofossils from western European Tethys reveals (i) a major extinction at or near the Cretaceous-Tertiary (K-T) boundary, probably caused by the impact, (ii) either a faunal abundance change or an extinction of up to nine ammonite species associated with a regression event shortly… 
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