Details
| Original language | English |
|---|---|
| Article number | 3074 |
| Journal | Scientific reports |
| Volume | 13 |
| Early online date | 22 Feb 2023 |
| Publication status | Published - 2023 |
Abstract
The Cenomanian/Turonian boundary interval is associated with an oceanic anoxic event (OAE 2, 94.0 Ma) during one of the warmest episodes in the Mesozoic. To date, plant responses to these climatic conditions are known only from the northern mid-latitudinal succession in Cassis, France. There, conifer-dominated and angiosperm-dominated vegetation types alternate. However, whether the exceptional environmental conditions had an impact on plant reproduction is unknown to date. We applied a new environmental proxy based on spore and pollen teratology on palynological samples from the Cassis succession, to explore if this phenomenon also occurs across the OAE 2. The observed frequencies of<1% malformed spores and pollen grains suggest that plant reproduction was not affected during the Cenomanian/Turonian boundary interval. While the effects of continental Large Igneous Province(s) on plant reproduction have shown to produce abnormal spore or pollen morphologies as evidence for severe environmental pollution, by contrast the effects of oceanic LIP(s) seems to be inconsequential.
ASJC Scopus subject areas
Sustainable Development Goals
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In: Scientific reports, Vol. 13, 3074, 2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The Cenomanian/Turonian boundary in light of new developments in terrestrial palynology
AU - Galasso, Francesca
AU - Heimhofer, Ulrich
AU - Schneebeli-Hermann, Elke
N1 - Funding Information: We would like to thank the Editorial Board Member Michal Zaton, Evelyn Kustatscher and the other anonymous reviewer for their time in evaluating the manuscript and for their informed comments and remarks. This work was supported by the Swiss National Science Foundation (project 200021_175540/1 to Elke Schneebeli-Hermann).
PY - 2023
Y1 - 2023
N2 - The Cenomanian/Turonian boundary interval is associated with an oceanic anoxic event (OAE 2, 94.0 Ma) during one of the warmest episodes in the Mesozoic. To date, plant responses to these climatic conditions are known only from the northern mid-latitudinal succession in Cassis, France. There, conifer-dominated and angiosperm-dominated vegetation types alternate. However, whether the exceptional environmental conditions had an impact on plant reproduction is unknown to date. We applied a new environmental proxy based on spore and pollen teratology on palynological samples from the Cassis succession, to explore if this phenomenon also occurs across the OAE 2. The observed frequencies of<1% malformed spores and pollen grains suggest that plant reproduction was not affected during the Cenomanian/Turonian boundary interval. While the effects of continental Large Igneous Province(s) on plant reproduction have shown to produce abnormal spore or pollen morphologies as evidence for severe environmental pollution, by contrast the effects of oceanic LIP(s) seems to be inconsequential.
AB - The Cenomanian/Turonian boundary interval is associated with an oceanic anoxic event (OAE 2, 94.0 Ma) during one of the warmest episodes in the Mesozoic. To date, plant responses to these climatic conditions are known only from the northern mid-latitudinal succession in Cassis, France. There, conifer-dominated and angiosperm-dominated vegetation types alternate. However, whether the exceptional environmental conditions had an impact on plant reproduction is unknown to date. We applied a new environmental proxy based on spore and pollen teratology on palynological samples from the Cassis succession, to explore if this phenomenon also occurs across the OAE 2. The observed frequencies of<1% malformed spores and pollen grains suggest that plant reproduction was not affected during the Cenomanian/Turonian boundary interval. While the effects of continental Large Igneous Province(s) on plant reproduction have shown to produce abnormal spore or pollen morphologies as evidence for severe environmental pollution, by contrast the effects of oceanic LIP(s) seems to be inconsequential.
UR - http://www.scopus.com/inward/record.url?scp=85148549043&partnerID=8YFLogxK
U2 - 10.1038/s41598-023-30072-6
DO - 10.1038/s41598-023-30072-6
M3 - Article
C2 - 36813802
AN - SCOPUS:85148549043
VL - 13
JO - Scientific reports
JF - Scientific reports
SN - 2045-2322
M1 - 3074
ER -