Journal of Micropalaeontology
Journal of Micropalaeontology
JM
Articles | Volume 37, issue 1
Articles | Volume 37, issue 1
https://doi.org/10.5194/jm-37-295-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-37-295-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 37, issue 1
Research article
 | 
08 Feb 2018
Research article |  | 08 Feb 2018

On a grain of sand – a microhabitat for the opportunistic agglutinated foraminifera Hemisphaerammina apta n. sp., from the early Eocene Arctic Ocean

David H. McNeil and Lisa A. Neville

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Latest update: 22 Nov 2024
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Short summary
Approximately 50 million years ago, global CO2 levels were abnormally high and the arctic climate was comparable to today’s southern USA. Our research analysed the geological and ecological conditions of this warm Arctic with a focus on one micro-organism that survived by being attached to fine grains of sand in a storm-prone Arctic Ocean. It emerged after CO2-caused mass extinction and colonized the Arctic when CO2 levels averaged 500 ppm. Today's CO2 levels are moving toward that level.
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