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http://hdl.handle.net/1942/38039
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DC Field | Value | Language |
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dc.contributor.author | Pearson, Paul N. | - |
dc.contributor.author | John, Eleanor | - |
dc.contributor.author | Wade, Bridget S. | - |
dc.contributor.author | D'HAENENS, Simon | - |
dc.contributor.author | Lear, Caroline H. | - |
dc.date.accessioned | 2022-09-12T09:20:27Z | - |
dc.date.available | 2022-09-12T09:20:27Z | - |
dc.date.issued | 2022 | - |
dc.date.submitted | 2022-08-17T11:03:52Z | - |
dc.identifier.citation | Journal of micropalaeontology, 41 (2) , p. 107 -127 | - |
dc.identifier.uri | http://hdl.handle.net/1942/38039 | - |
dc.description.abstract | Muricate planktonic foraminifera comprise an extinct clade that was diverse and abundant in the Paleogene oceans and are widely used in palaeoclimate research as geochemical proxy carriers for the upper oceans. Their characteristic wall texture has surface projections called "muricae" formed by upward deflection and mounding of successive layers of the test wall. The group is generally considered to have lacked "true spines": that is, acicular calcite crystals embedded in and projecting from the test surface such as occur in many modern and some Paleogene groups. Here we present evidence from polished sections, surface wall scanning electron microscope images and test dissections, showing that radially orientated crystalline spine-like structures occur in the centre of muricae in various species of Acarinina and Morozovella and projected from the test wall in life. Their morphology and placement in the wall suggest that they evolved independently of true spines. Nevertheless, they may have served a similar range of functions as spines in modern species, including aiding buoyancy and predation and especially harbouring algal photosymbionts, the function for which we suggest they probably first evolved. Our observations strengthen the analogy between Paleogene mixed-layer-dwelling planktonic foraminifera and their modern spinose counterparts. | - |
dc.description.sponsorship | This research has been supported by the Natural Environment Research Council (grant nos. NE/P019102/1, GR3/12618, NE/X509345/1, and NE/B503225/1) Funding was provided by NERC grant NE/P019102/1 to Caroline H. Lear and Paul N. Pearson as part of the SWEET (Super-Warm Early Eocene Temperatures and climate) consortium (https://www.deepmip.org/sweet/, last access: 22 July 2022). We are grateful to Chris Poole for Fig. 3b and c. We thank Dan Lunt (University of Bristol) for coordinating that project and funding the artwork in Fig. 12. The Belgian American Educational Foundation and the Fulbright Commission of Belgium and Luxemburg provided support to Simon D’haenens. Tanzanian foraminifera were previously obtained with NERC grants GR3/12618, NE/X509345/1 and NE/B503225/1 to Paul N. Pearson. We thank the Tanzania Commission of Science and Technology (Costech) and Tanzania Petroleum Development Corporation (TPDC) for assistance in that research and the various members of the Tanzania Drilling Project field teams, especially Joyce Singano of TPDC. We thank Brian Huber, Michal Kucera and an anonymous reviewer for their constructive comments in review. | - |
dc.language.iso | en | - |
dc.publisher | COPERNICUS GESELLSCHAFT MBH | - |
dc.rights | Author(s) 2022. This work is distributed under the Creative Commons Attribution 4.0 License. | - |
dc.title | Spine-like structures in Paleogene muricate planktonic foraminifera | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 127 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | 107 | - |
dc.identifier.volume | 41 | - |
local.format.pages | 21 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | Pearson, PN (corresponding author), Cardiff Univ, Sch Earth & Environm Sci, Main Bldg,Pk Pl, Cardiff CF10 3AT, Wales.; Pearson, PN (corresponding author), UCL, Dept Earth Sci, Gower St, London WC1E 6BT, England. | - |
dc.description.notes | pearsonp@cardiff.ac.uk | - |
local.publisher.place | BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.5194/jm-41-107-2022 | - |
dc.identifier.isi | 000834136600001 | - |
local.provider.type | wosris | - |
local.description.affiliation | [Pearson, Paul N.; John, Eleanor; Lear, Caroline H.] Cardiff Univ, Sch Earth & Environm Sci, Main Bldg,Pk Pl, Cardiff CF10 3AT, Wales. | - |
local.description.affiliation | [Pearson, Paul N.; Wade, Bridget S.] UCL, Dept Earth Sci, Gower St, London WC1E 6BT, England. | - |
local.description.affiliation | [D'haenens, Simon] Yale Univ, Dept Earth & Planetary Sci, 210 Whitney Ave, New Haven, CT 06511 USA. | - |
local.description.affiliation | [D'haenens, Simon] Hasselt Univ, Res Coordinat Off, Martelarenlaan 42, B-3500 Hasselt, Belgium. | - |
local.description.affiliation | [D'haenens, Simon] Hasselt Univ, Data Sci Inst, B-3500 Diepenbeek, Belgium. | - |
local.uhasselt.international | yes | - |
item.validation | ecoom 2023 | - |
item.fulltext | With Fulltext | - |
item.accessRights | Open Access | - |
item.fullcitation | Pearson, Paul N.; John, Eleanor; Wade, Bridget S.; D'HAENENS, Simon & Lear, Caroline H. (2022) Spine-like structures in Paleogene muricate planktonic foraminifera. In: Journal of micropalaeontology, 41 (2) , p. 107 -127. | - |
item.contributor | Pearson, Paul N. | - |
item.contributor | John, Eleanor | - |
item.contributor | Wade, Bridget S. | - |
item.contributor | D'HAENENS, Simon | - |
item.contributor | Lear, Caroline H. | - |
crisitem.journal.issn | 0262-821X | - |
crisitem.journal.eissn | 2041-4978 | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
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jm-41-107-2022.pdf | Published version | 19.56 MB | Adobe PDF | View/Open |
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