The Eocene/Oligocene boundary event in the deep sea

Bruce H. Corliss, Marie Pierre Aubry, W. A. Berggren, Juliane M. Fenner, Lloyd D. Keigwin, Gerta Keller

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Abstract

Analysis of middle Eocene to early Oligocene calcareous and siliceous microfossils shows gradual biotic changes with no massive extinction event across the Eocene/Oligocene boundary. Biotic changes in the late Paleogene appear to reflect changing paleoclimatic and paleoceanographic conditions and do not support suggestions of a catastrophic biotic event caused by a bolide impact at the Eocene/Oligocene boundary.

Original languageEnglish (US)
Pages (from-to)806-810
Number of pages5
JournalScience
Volume226
Issue number4676
DOIs
StatePublished - 1984

All Science Journal Classification (ASJC) codes

  • General

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    Corliss, B. H., Aubry, M. P., Berggren, W. A., Fenner, J. M., Keigwin, L. D., & Keller, G. (1984). The Eocene/Oligocene boundary event in the deep sea. Science, 226(4676), 806-810. https://doi.org/10.1126/science.226.4676.806