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Global record of “ghost” nannofossils reveals plankton resilience to high CO2 and warming
Naturhistoriska riksmuseet, Enheten för paleobiologi.ORCID-id: 0000-0003-1766-3516
Department of Earth Sciences, University College London,.
Department of Earth Sciences, The Natural History Museum, London.
4Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Firenze, Italy..
Vise andre og tillknytning
2022 (engelsk)Inngår i: Science, ISSN 0036-8075, Vol. 376, nr 6595, s. 853-856Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Predictions of how marine calcifying organisms will respond to climate change rely heavily on the fossilrecord of nannoplankton. Declines in calcium carbonate (CaCO3) and nannofossil abundance throughseveral past global warming events have been interpreted as biocalcification crises caused by oceanacidification and related factors. We present a global record of imprint—or“ghost”—nannofossils thatcontradicts this view, revealing exquisitely preserved nannoplankton throughout an inferred Jurassicbiocalcification crisis. Imprints from two further Cretaceous warming events confirm that the fossilrecords of these intervals have been strongly distorted by CaCO3dissolution. Although the rapidity ofpresent-day climate change exceeds the temporal resolution of most fossil records, complicatingdirect comparison with past warming events, our findings demonstrate that nannoplankton were moreresilient to past events than traditional fossil evidence suggests.

sted, utgiver, år, opplag, sider
Washington D.C., 2022. Vol. 376, nr 6595, s. 853-856
Emneord [en]
Nannofossils, coccoliths, anoxic events, Jurassic, Toarcian, diagenesis
HSV kategori
Forskningsprogram
Den föränderliga jorden
Identifikatorer
URN: urn:nbn:se:nrm:diva-4879DOI: 10.1126/science.abm7330OAI: oai:DiVA.org:nrm-4879DiVA, id: diva2:1714457
Forskningsfinansiär
Swedish Research Council, 2019-04524Swedish Research Council, 2019-4061Wenner-Gren Foundations, UPD2018-0114Carl Tryggers foundation , 19:380Knut and Alice Wallenberg Foundation, 2020.0145NERC - the Natural Environment Research Council, NE/I005641/1
Merknad

This work was supported by Wenner-Gren Foundation grant UPD2018-0114 (S.M.S. and V.V.); Swedish Research Council grants VR 2019-04524 (S.M.S.) and VR 2019-4061 (V.V.); Carl Tryggers Foundation grant 19:380 (V.V.); Knut and Alice Wallenberg Foundationgrant KAW 2020.0145 (V.V.); Natural Environment Research Council grant NE/I005641/1 (R.J.T.); Lund University Carbon Cycle Centre(V.V.); Bolin Centre for Climate Research (S.M.S.); and The Great Britain Sasakawa Foundation 4390 (S.D.).

Tilgjengelig fra: 2022-11-29 Laget: 2022-11-29bibliografisk kontrollert

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