Journal of Micropalaeontology
Journal of Micropalaeontology
JM
Articles | Volume 42, issue 2
Articles | Volume 42, issue 2
https://doi.org/10.5194/jm-42-277-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-42-277-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 42, issue 2
Research article
 | 
08 Dec 2023
Research article |  | 08 Dec 2023

Triassic and Jurassic possible planktonic foraminifera and the assemblages recovered from the Ogrodzieniec Glauconitic Marls Formation (uppermost Callovian and lowermost Oxfordian, Jurassic) of the Polish Basin

Malcolm B. Hart, Holger Gebhardt, Eiichi Setoyama, Christopher W. Smart, and Jarosław Tyszka

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Short summary
<p>In the 1960s-1970s some species of Triassic foraminifera were described as having a planktic mode of life. This was questioned and Malcolm Hart studied the material in Vienna, taking some to London for SEM imaging. Samples collected from Poland are compared to these images and the suggested planktic mode of life discussed. Foraminifera collected in Ogrodzieniec are glauconitic steinkerns with no test material present and none of the diagnostic features needed to determine "new" species.</p>
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