An overview of lipid biomarkers in terrestrial extreme environments with relevance for mars exploration
Lipid molecules are organic compounds, insoluble in water, and based on carbon-carbon
chains that form an integral part of biological cell membranes. As such, lipids are ubiquitous …
chains that form an integral part of biological cell membranes. As such, lipids are ubiquitous …
Lipid biomarkers for the reconstruction of deep-time environmental conditions
Lipids can survive long geological intervals within sediments and provide a unique tool that
allows the reconstruction of past organismic diversity and environmental conditions. The …
allows the reconstruction of past organismic diversity and environmental conditions. The …
Terrestrial–marine teleconnections in the collapse and rebuilding of Early Triassic marine ecosystems
The latest Permian mass extinction (LPE), just prior to the Permian–Triassic boundary at~
252Ma, resulted in the disappearance of~ 90% of skeletonized marine taxa and the …
252Ma, resulted in the disappearance of~ 90% of skeletonized marine taxa and the …
Evidence for a diachronous Late Permian marine crisis from the Canadian Arctic region
A high-resolution chemostratigraphic study of a 24-m-thick section at West Blind Fiord on
Ellesmere Island (Canadian Arctic) documents stepwise environmental deterioration in the …
Ellesmere Island (Canadian Arctic) documents stepwise environmental deterioration in the …
Microbial blooms triggered pyrite framboid enrichment and oxygen depletion in carbonate platforms immediately after the latest Permian extinction
ZQ Chen, Y Fang, PB Wignall, Z Guo… - Geophysical …, 2022 - Wiley Online Library
Redox variations across the Permian‐Triassic boundary (PTB) have long been debated,
especially during the proliferation of PTB microbialites. Here, we report redox fluctuations …
especially during the proliferation of PTB microbialites. Here, we report redox fluctuations …
Simulating Permian–Triassic oceanic anoxia distribution: implications for species extinction and recovery
C Winguth, AME Winguth - Geology, 2012 - pubs.geoscienceworld.org
The biggest mass extinction in the Phanerozoic, at the end of the Permian, has been
associated with oceanic changes, but the exact dynamics are still debated. Intensified …
associated with oceanic changes, but the exact dynamics are still debated. Intensified …
Endocrine disruption in human fetal testis explants by individual and combined exposures to selected pharmaceuticals, pesticides, and environmental pollutants
Background: Numerous chemicals are capable of disrupting androgen production, but the
possibility that they might act together to produce effects greater than those of the most …
possibility that they might act together to produce effects greater than those of the most …
Sponge-microbial build-ups from the lowermost Triassic Chanakhchi section in southern Armenia: Microfacies and stable carbon isotopes
The end-Permian mass extinction was the most severe biotic crisis in Earth's history. In its
direct aftermath microbial communities colonized some of the space left vacant after the …
direct aftermath microbial communities colonized some of the space left vacant after the …
Enhanced nitrogen fixation in the immediate aftermath of the latest Permian marine mass extinction
The carbon (δ13Corg) and nitrogen (δ15N) isotopic compositions of bulk organic matter
were analyzed in two high-resolution Permian-Triassic transitional sections containing …
were analyzed in two high-resolution Permian-Triassic transitional sections containing …
In the aftermath of the end‐P ermian extinction: the microbialite refuge?
MB Forel, S Crasquin, S Kershaw, PY Collin - Terra Nova, 2013 - Wiley Online Library
We present the first study of micro‐crustaceans (ostracods) associated with microbial crusts
in the aftermath of the most devastating extinction, the end‐P ermian extinction (EPE). These …
in the aftermath of the most devastating extinction, the end‐P ermian extinction (EPE). These …