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Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 15, issue 22
Biogeosciences, 15, 6773–6789, 2018
https://doi.org/10.5194/bg-15-6773-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 6773–6789, 2018
https://doi.org/10.5194/bg-15-6773-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 14 Nov 2018

Research article | 14 Nov 2018

Weaving of biomineralization framework in rotaliid foraminifera: implications for paleoceanographic proxies

Yukiko Nagai et al.
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Cited articles  
Angell, R. W.: The Test Structure and Composition of the Foraminifer Rosalina floridana, J. Protozool., 14, 299–307, 1967. 
Angell, R. W.: Calcification during chamber development in Rosalina floridana, J. Foramin. Res., 9, 341-353, 1979. 
Banner, F. T. and Williams, E.: Test structure, organic skeleton and extrathalamous cytoplasm of Ammonia Bruennich, J. Foramin. Res., 3, 49–69, 1973. 
Banner, F. T., Sheehan, R., and Williams, E.: The organic skeletons of rotaline foraminifera; a review, J. Foramin. Res., 3, 30–42, 1973. 
Bé, A. W. H., Hemleben, C., Anderson, O. R., and Spindler, M.: Chamber formation in planktonic foraminifera, Micropaleontology, 25, 14, https://doi.org/10.2307/1485304, 1979. 
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We interpret detailed SEM and time-lapse observations of the calcification process in living foraminifera, which we reveal to be directly linked to the construction mechanism of organic membranes where the calcium carbonate precipitation takes place. We show that these membranes are a highly perforated outline is first woven by skeletal pseudopodia and then later overlaid by a layer of membranous pseudopodia to close the gaps. The chemical composition is related to these structures.
We interpret detailed SEM and time-lapse observations of the calcification process in living...
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