Test-size evolution of the planktonic foraminifer <i>Globorotalia menardii</i> in the eastern tropical Atlantic since the Late Miocene

Friesenhagen, Thore

doi:https://doi.org/10.5194/bg-19-777-2022

Articles | Volume 19, issue 3

https://doi.org/10.5194/bg-19-777-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-19-777-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 3

Research article

|

09 Feb 2022

Research article |

| 09 Feb 2022

Test-size evolution of the planktonic foraminifer Globorotalia menardii in the eastern tropical Atlantic since the Late Miocene

Thore Friesenhagen

Supplement

https://doi.org/10.5194/bg-19-777-2022-supplement

Data sets

Archive to the evolutionary study about menardiform globorotallids planktonic foraminifer in the eastern tropical Atlantic ocean ODP Hole 667A T. Friesenhagen https://doi.pangaea.de/10.1594/PANGAEA.940563

Model code and software

Archive to the evolutionary study about menardiform globorotallids planktonic foraminifer in the eastern tropical Atlantic ocean ODP Hole 667A T. Friesenhagen https://doi.pangaea.de/10.1594/PANGAEA.940563

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Short summary

Size measurements of the planktonic foraminifer Globorotalia menardii and related forms are used to investigate the shell-size evolution for the last 8 million years in the eastern tropical Atlantic Ocean. Long-term changes in the shell size coincide with major climatic, palaeogeographic and palaeoceanographic changes and suggest the occurrence of a new G. menardii type in the Atlantic Ocean ca. 2 million years ago.