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.
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.
the Creative Commons Attribution 4.0 License.
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
School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, United Kingdom
Holger Gebhardt
Palaeontology and Collections, GeoSphere Austria, Neulinggasse 38, 1030 Wien, Austria
Eiichi Setoyama
Energy & Geoscience Institute, University of Utah, Salt Lake City, UT 84108, USA
Christopher W. Smart
School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, United Kingdom
Jarosław Tyszka
Kraków Research Centre, Institute of Geological Sciences, Polish Academy of Sciences, ul Senacka 1, 31-002 Kraków, Poland
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The paper describes the foraminifera of the Eocene in the area of the Hampshire Basin and the English Channel. Hyperthermal events (Early Eocene Climatic Optimum (EECO)) Late Lutetian Thermal Event (LLTE), and Middle Eocene Climatic Optimum (MECO)) are discussed and set in the context of global climate change in the Paleogene.
Malcolm B. Hart, Irina Polovodova Asteman, Andrew J. Gooday, Babette Hoogakker, and Christopher W. Smart
J. Micropalaeontol., 45, 717–723, https://doi.org/10.5194/jm-45-717-2026, https://doi.org/10.5194/jm-45-717-2026, 2026
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In this "Introduction", we present a brief summary of the life of John Murray and his research interests. It is an introduction to the papers that have been approved for inclusion in this Special Issue of the JoM.
Malcolm B. Hart, Mark E. A. Alex-Sanders, and Christopher W. Smart
J. Micropalaeontol., 45, 315–334, https://doi.org/10.5194/jm-45-315-2026, https://doi.org/10.5194/jm-45-315-2026, 2026
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The paper describes the foraminifera of the Eocene in the area of the Hampshire Basin and the English Channel. Hyperthermal events (Early Eocene Climatic Optimum (EECO)) Late Lutetian Thermal Event (LLTE), and Middle Eocene Climatic Optimum (MECO)) are discussed and set in the context of global climate change in the Paleogene.
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Foraminifera are microorganisms which, due to their abundance and diversity, are often used as proxies to describe climatic changes in marine environments. For this purpose, experiments containing antibiotics that are intended to reduce the activity of other microorganisms are carried out with foraminifera. In our study, we examined the influence of antibiotics on foraminifera and tested whether these chemicals are really harmless for foraminifera or not.
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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>
<p>In the 1960s-1970s some species of Triassic foraminifera were described as having a planktic...