Articles | Volume 12, issue 4
Clim. Past, 12, 981–1007, 2016
https://doi.org/10.5194/cp-12-981-2016

Special issue: Climatic and biotic events of the Paleogene

Clim. Past, 12, 981–1007, 2016
https://doi.org/10.5194/cp-12-981-2016

Research article 15 Apr 2016

Research article | 15 Apr 2016

Major perturbations in the global carbon cycle and photosymbiont-bearing planktic foraminifera during the early Eocene

Valeria Luciani et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Valeria Luciani on behalf of the Authors (05 Jun 2015)  Author's response    Manuscript
ED: Reconsider after major revisions (25 Jun 2015) by Gerald Dickens
AR by Valeria Luciani on behalf of the Authors (26 Nov 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (30 Nov 2015) by Appy Sluijs
RR by Paul Pearson (09 Dec 2015)
RR by Robert Speijer (10 Jan 2016)
ED: Reconsider after major revisions (25 Jan 2016) by Appy Sluijs
AR by Valeria Luciani on behalf of the Authors (16 Feb 2016)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by Editor) (21 Mar 2016) by Appy Sluijs
AR by Valeria Luciani on behalf of the Authors (23 Mar 2016)  Author's response    Manuscript
ED: Publish as is (24 Mar 2016) by Appy Sluijs
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Short summary
The symbiont-bearing planktic foraminiferal genera Morozovella and Acarinina were among the most important calcifiers of the early Paleogene tropical and subtropical oceans. However, a remarkable and permanent switch in the relative abundance of these genera happened in the early Eocene. We show that this switch occurred at low-latitude sites near the start of the Early Eocene Climatic Optimum (EECO), a multi-million-year interval when Earth surface temperatures reached their Cenozoic maximum.