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Comment
. 2022 Mar 29;119(13):e2201495119.
doi: 10.1073/pnas.2201495119. Epub 2022 Mar 21.

Unraveling ecological signals from a global warming event of the past

Tracy Aze  1
Affiliations
Comment

Unraveling ecological signals from a global warming event of the past

Tracy Aze. Proc Natl Acad Sci U S A. .
No abstract available

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Conflict of interest statement

The author declares no competing interest.

Figures

Fig. 1.
Fig. 1.
(A) The mean magnitudes of the PETM negative carbon isotope excursion as recorded by different carbon isotope archives [data from McInerney and Wing (5)]. P. foraminifera, planktic foraminifera; B. foraminifera, benthic foraminifera; bulk carb., bulk carbonate. The curve indicates the typical expression of the PETM negative carbon isotope excursion in marine sedimentary archives, such as IODP Site 865. CIE, carbon isotope excursion; δ13C, carbon isotopes ratios; -ve, more negative values; +ve, more positive values. (B) PETM sea surface temperature (degrees Celsius) anomalies for the Arctic, Pacific, North (N.) Atlantic, South (S.) Atlantic and Southern Oceans [data from Dunkley Jones et al. (9)]. Open triangles, surface-dwelling planktonic foraminifera oxygen isotope derived temperatures; open circles, thermocline-dwelling planktonic foraminifera oxygen isotope derived temperatures; open diamonds, surface-dwelling planktonic foraminifera Mg/Ca ratio derived temperatures; crosses, thermocline-dwelling planktonic foraminifera Mg/Ca ratio derived temperatures; open squares, glycerol dialkyl glycerol tetraether derived temperatures. (C) Summary of the main biotic impacts on key marine microfossil groups [data from Speijer et al. (13)].
See this image and copyright information in PMC

Comment on

References

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