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Research Article

The Origin and Initial Rise of Pelagic Cephalopods in the Ordovician

  • Björn Kröger mail,

    bjoekroe@gmx.de

    Affiliation: Museum für Naturkunde, Leibniz Institute for Research on Evolution and Biodiversity at the Humboldt University Berlin, Berlin, Germany

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  • Thomas Servais,

    Affiliation: Université de Lille 1, UMR 8157 du CNRS Géosystémes, Villeneuve d' Ascq, France

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  • Yunbai Zhang

    Affiliation: Nanjing Institute of Geology and Paleontology, Nanjing, China

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  • Published: September 30, 2009
  • DOI: 10.1371/journal.pone.0007262
  • Published in PLOS ONE

About the Authors

Björn Kröger
Museum für Naturkunde, Leibniz Institute for Research on Evolution and Biodiversity at the Humboldt University Berlin, Berlin, Germany
Thomas Servais
Université de Lille 1, UMR 8157 du CNRS Géosystémes, Villeneuve d' Ascq, France
Yunbai Zhang
Nanjing Institute of Geology and Paleontology, Nanjing, China

Corresponding Author

Email: bjoekroe@gmx.de

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BK. Performed the experiments: BK. Analyzed the data: BK. Wrote the paper: BK TS YZ. Contributed data: YZ.